PIP Appeal, next renewal

My wife was on DLA for many years (Middle/Lower award) previously awarded with no assessment and 2 renewals with no assessment. She was then sent forms in 2017 to move to PIP. In 2018 she was contacted to have a home visit assessment.
Long story short, the assessment seemed to go well, but the assessor was very rude and not prepared, even turning up without her laptop and hand write everything. Weeks later we received the outcome and no award.
The records from the assessor were basically completely made up lies and were nothing like the actual assessment. She basically wrote up her hand notes that I watched her write and were all over the place and filled in the gaps. Probably wrote them up days later as the assessment was on a Friday. I complained to Capita stating I think she has mixed up her notes from other assessment.

After a complete mix up by Capita the first mandatory reconsideration failed until I contacted PIP to inform them they went ahead without allowing me to submit the extra paper work I said I was sending. 
The extra paperwork I submitted included exact quotes and extracts from the assessment. I had secretly recorded the whole thing. The physical assessment was even cut short as my wife couldnt complete them and was yelping in pain. The assessors notes stated she completed the physical with no issues or signs of distress.

After the proper mandatory reconsideration she was awarded 3 years for standard living only, even though her condition was far worst than her previous DLA claims. They had awarded 1 extra point in a category we werent even expecting (toilet). On the PIP forms we had ticked that this doesnt effect her and in the assessment we skipped this questioning along.
Capita's only comment was that it was against the rules to secretly record the meetings. Never commented on the lies we proved. They even had the nerve to say we lied about the assessor not having her laptop. Even though we sent a CD to them with an extract of the assessor apologizing that she will have to hand write everything as she had no laptop.

In 2019 we received the questionnaire letter about an appeal case. We returned it stating only I would be going to the appeal and representing my wife. Months later I attended the appeal to an unhappy panel asking where was my wife. They adjourn the appeal to a later date without letting me speak or present the weeks of work I had prepared.

Now comes 2020 and we send the Covid letter back asking for a face to face, not telephone etc. Even though my wife doesnt want to go to a face to face, or speak to them. After the home assessment she doesnt want to deal with this as it upset her to much.

Now comes my future thoughts and questions that I need help with.

We will probably be receiving my wifes renewal forms in 6-8 months time, before any appeal. How will an appeal in progress effect the renewal?

If in 2021 we request the appeal to be changed to a paper hearing and we loose, will this affect the renewal?

I am thinking that if we change to a paper hearing at the last minute, even if they reject and remove all points, then we have lost nothing.

I know during a face to face, they will inform you if they think your case isnt going well and its in your best interest to stop. Can you request a paper hearing and state for the panel to not proceed if your current award is at risk? Or can we write and state we only want to appeal the mobility part and use the extract from her physical assessment as the main evidence?

If we submit a renewal and that also goes badly, can you have 2 appeals going at the same time or are they merged?

Is it worth us writing again to PIP for us to try to negotiate an end to the appeal? For example we were expecting daily enhanced and mobility standard (possibly enhanced) but would settle on my wifes previous DLA award, equivalent to standard/standard.

After so many letters to PIP, Capita and the appeals, I just want this to end and so does my wife. I truly thought audio evidence would have been enough to stop this early on, but so surprised at PIP and Capita responses to it. I have actually submitted audio to them proving the assessor broke the rules by discussing point scoring and comparing my wife to other cases she deals with, and stating that she wont score many points in a certain area.