we have all been there.
we see something shiny and pretty and its super cheap.
your ford wheels for example.
but we then spend more money to make them work than it would have been to buy the correct wheels in the first place.
then we sit and scratch our heads wondering why we did this.
Dont is my suggestion.
20 inch wheels with tires are like $300- 500 dollars nowadays. There are no ford pattern wheels id ever think of changing bolt pattern for, unless, maybe they were some 22 inch billet specialties or something that would cost $6500 to buy and someone was selling for $1200. Then i might, might consider it.
But, since you said youre going to bag the truck, you alreday have like $5k being tied up into all that, so, whats another $500 to ge the correct wheels for your truck and not have any issues..
Do it once, do it right.