Yes, you sure can.
Yes it will fit right in there with no modifying.
Yes they interchange
305 horsepower
Yes they will. I have 305 24" wheels for my 01 Tahoe. They fit well.
235 horse is stock on 98 305
Yes.
Should be the 700R4
it is a 700r4
.035
yes like 350 engine
If it has a 305 around 15mpg If it has a 350 13-14
yes