One thing to your advantage is the long overhang behind the rear wheels. This gives you a lot of side to side correction, without having to make dramatic turns with the RV. First time I did it, I started with the trailer at a 90 degree angle from the back of the coach. Just turned the wheel and backed up, There was enough swing of the rear of the coach so the trailer went almost straight backward. Never had to pull forward to correct.
'83 Revcon Prince 31' FWD FMCA F298817
502 w/Howell/GM ECM/Edelbrock MPFI,Thorley's & Magnaflows, 4L85E 4 spd, KoniFSD