agreed, in short: everything. I think the engine requires a special oil pan. Trans tunnel will need modifyed to fit i think. completely special fabed up rearend, rims/tires that will fit and be able to actually transfer power to the road.
Tools needed: adequate welder, fab skills, place to completely tear apart 2 cars, place to acquire metal to name a few.
In shorter: nothing in the chevette driveline will be useful.