Hi Evan,
I've wrapped my aluminum dashboard in Nappa leather - twice!
My first attempt was using a a pre-stitched kit off ebay - a special order one in Nappa leather. Nappa is more stretchy than the standard leather they use, but for a beginner like me trying to glue it down and get the stitch lines straight it's a pita of a job. I got a fair result, but decided to do it again with a piece of unstitched leather. Simple reason was my Z has a custom leather dashboard with stitching and the stitching on the aluminum trim was just too much stitching :lol:
I purchased a piece of Nappa on Ebay, lots of suppliers and plenty of colour choice and I have to say I'm well pleased with the result. A few tips that worked for me, but I'm no expert. This was my first effort working with leather and a proffessional leather trimmer would probably approach it differently, but it worked for me.
Use a high temperatrure contact adhesive - I used Wayside Adhesives HTA 1000.
I mounted my Ali trim on a board using bolts screwed into four of the rear fixings and set into holes on the mounting board. This meant I could concentrate on handling/glueing the leather without the trim moving.
I used 0.7m Nappa - thin and stretchy
I glued the leather down in one go. Line it up, allowing plenty of overlap all round, stick just the very edge down at one thin end and then lightly stretch and apply it down the length - see photos. Stretch and roll the edges round to the back and stick it down. There is a danger that if you stick the main part down in several sections you might not get a totally smooth surface between the different appications of contact adhesive. Any imperfections will stand out like a sore thumb on this trim piece - that's the greatest danger
I lightly roughened the Ali trim and cleaned the surface with alcohol to degrease.
It all sounds a bit daunting, but frankly easier than it sounds. Good luck - what colour have you have in mind?