I do all that myself, but I do have some experience in it. Way back when i bought a TT, went to the dealers to pick it up. Salesman helping me went to get a tech to do the wiring, by the time he got back I had it done. I've also wired every toad (except one) myself.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '05 Odyssey