I think they'll end up having enough to not get relegated as long as they can avoid a points deduction as their squad is so deep and they'll still have some of the players named above who they won't be able to move on because of age and wages. The market is so inflated at the moment - Brighton are paying £4m for Fulham's reserve keeper, that I think they'll get £40m+ with large amounts up front for Kodja, Grealish Chester and Bjanason even with people knowing they are desperate. Grealish will in my view go for a minumum of £20m as there seems to be a demand for him. That'll sort them short term, I can see PL clubs looking favourably on them for loans, however without signing anyone they could start the season in a 451 with:
Kid Keeper/Steer if fit
El Mohamedy
Elphick
Jedinak
Taylor
Adomah
Hourihane
Whelan
Lansbury
O'Hare
Hogan
Subs
Green
Gardner
Bree
Davis
Hepburn Murphy
2kids
I've assumed McCormack and Tschibola will be binned on frees somewhere so that someone can cover their wages. Hourihane would go for £4millionish if they need to cash someone else in, Hogan the same maybe a touch more.
That's a mid/lower half of the table Championship side and significantly better than the one we started the 2006/7 season with, be it with zero pace down the spine. That should raise them enough to stay solvent but will probably still fail FFP at the end of the season. The EFL haven't imposed a points deduction this far on any team, I can't find any information to say there is a defined level that triggers the deduction so presumably it is discretionary, if so they aren't going to hit a club the size of Villa with it unless it bears no relevance to where they end up.