Escort Mk3 or 4 Cosworth inner wings.

Hi
Basically is it possible to use the original inner wings in the Escort MK3/4 for a Cosworth 4X4 project?

Seen a few conversions on the net and it seems 2wd can use them with some work and 4X4 use the Sierra front end.

Also what would be a good 4X4 base to use like the Xr4x4 say?

Ferd