I did plenty of research on this site and elsewhere to figure out what kind of rotisserie I wanted to build as I do lots of restorations and wanted to make sure it fit my needs. It had to have a few things, wheels, to be able to roll it around. Adjustable for all size playfields, have used it for WPC standard and wide playfields ranging from Safecracker to STTNG, system 11's and all other sizes. I made it so it's adjustable from width and length and made sure nothing sticks out to bump into while your working around it. The height is also adjustable depending on whether your sitting on a stool or standing. I also made sure it's sturdy which it is, very sturdy and I put locking wheels to keep it from moving around. I also wanted it to hold a playfield complete without having to remove any parts to mount it, I leave the apron off by choice but it will even work with the apron installed.
But the best part for me is that I'm able to work on the playfield while it's plugged into the game so I can tweak everything on the rotisserie and not in the cabinet. I had an old pincart that I sacrificed for the rotisserie because I had it and it seemed to make sense, I added the wood shelf to keep tools and parts on and glad I did, comes in handy. The swivels lock from both ends and the P.F spins very easy, over-all I wouldn't change a thing and have used it for about a year now and did about 6 playfields. I used tight tolerance telescopic tubing, bought a cheap engine stand off the internet and cut it all up and had a welder assemble it for me under my supervision. I painted it all in hammerite paint to finish it off. Hope this helps gives others some feedback while building their own.
I don't plan on going into the rotisserie building business but here's some pics of the high speed I just finished. I posted a few pics and the original engine stand I started with, which I sliced and diced up so much there wasn't much left of the original design. Here's the engine stand I started with: ebay.com link: K L Supply MC25 Metric Engine Stand 37 9352