east_tn_81
Adventurer
If this is the case and you are committed to doing the 12v swap, then it probably makes sense to pay the experts to do it. They will do it once and do it right, and have done many of the exact truck you have. Also, they may be a long way away, but in the bigger picture of how much you are spending to do the swap, shipping the truck there, or driving it and flying home would likely be worth the expense.
Wise man