I got this job. I was going to use a 305 or a 308 both equiped with a thumb, a 306 or 308 articulated loader with pallet forks and bucket, a D3 dozer or a D21(Komatsu), maybe a 252B skid steer, (CAT stuff would be rented out from Foley)& finally a JD 2350 tractor with york rake for finsh. The retainer wall would be made out of rock because I don't think block could hold all that up and would probably be to costly(gravel would be filled behind it and I would use some cement on the wall for extra suport). The backyard would be filled in and all drainage pipes would be led out of the wall, ext. What equipment would you use and what type of materail for the wall would you use? To get down there I may be able to use a nieghbors quad trail but if I can't I would have to create my own.