most of the patch panels come from the same source and often require "massaging", so go with whoever gives you the best price and/or discount. LMC, Classic Parts, Bowtie Bits, Brothers, etc., are all resellers.
Well then, the above post is what I agree with in my experience. In a way, it's fun to put in a patch. It's like a puzzle piece. Some are harder than others. Be sure to get the item being patched on a table or lift cab high, sit in a chair or work at a good comfortable position. You will do your best work that way. Cut out the bad, cut the patch a little larger and then gently die grind the edges of the patch, slowly getting closer and closer to a butt tight fit.
I assume you know all the rest of the procedure. Welding and such.
As far as fit, sometimes the truck is out of whack. The patches are made to fit the generic/nominal tolerance truck model. Usually there are no major adjustments to the patch.
We all have to "make it work" by whatever it takes. Donor parts are nice sometimes.
