So let me get this straight:
You want Trump to yield to Pence (giving the Democrats what they want).
And have Joe Biden yield to Harris (giving the Democrats what they want).
You, sir, are a terrible negotiator. :-)
hah, hah... hmmm...
part of my thinking is that trump is part pacifist. he would seek almost any peaceful way to avoid armed conflict. this would include stepping aside for pence presuming he can assure himself that pence is honest and trustworthy (the notion would not be viable for trump otherwise, and it would need to be viable to trump to proceed).
(hey, he hasn’t even started a war yet!)
i would imagine pence would almost certainly defeat harris in a fair election. trump could come back in 2024 once the election process is cleaned up and presuming pence agrees to the major outlines of the deal (4 years max for pence if he wins, then presumably would step aside after that allowing a 2024 trump campaign, probably as part of the package deal).