So i think i have narrowed it down to what i want: Please correct me if i am wrong, or have an otherwise bad idea

1988-1997 Ford F350 SRW front and rear axle with rear disc brakes (i've already found a complete low mileage 1997 F350 for $600) Am i correct in thinking the front axle is drivers side differential on these?

6.0 LS with 4l80E transmission.- Ive found a low mileage 2000 chevy 2500 for $1200. I realize i will need the shift computer for the 4L80E, which is expensive. Does the 6.0 ever come with the 4L60E?

transfer case- still not sure here. Does the Transfer case on a 2000 chevy 2500 have a passenger or drivers drop? Would it be worth using? I know they make adapters for the NP205, but can i get a 205 as drivers drop? which vehicles did they come in?

Springs- factory springs, preferably spring under- what is involved with mounting the Ford D60 as a spring under? I assume i will have to grind/modify the pumpkin to provide a suitable spring perch, and re-weld the passenger spring perch?

Tires- 33 or 35 inch on factory Ford wheels (if possible)

thoughts?