I've finally been able to start putting something together. I'm going to go with my 2 lane Scalextric Classic track on top of an 1/2" MDF table as a start. I'm going to be building three 4' x 8' tables with folding legs that can be set up and taken down and stored in the garage. I'm going to use 1" x 4" for the frame and legs. The total length of track will be about 60 - 65 feet. I've ordered 2 of these power supplies, (
https://www.amazon.com/gp/product/B07M9N73YQ/ref=ox_sc_saved_title_2?smid=ANW9CH00EEXDH&psc=1 ), one for each lane. I think if I decide later to go with a 4 lane routed track these will be enough to power 2 lanes each. I'm guessing I'll need about 6 power taps placed around the track to keep the power up around the track. I have the diagram from
[email protected] as a guide. If I'm understanding it correctly I'll need a terminal block with a pair of terminals for each controller on one side. I'm going to use an 8 post block in case I go with a 4 lane track later. On the other side I will be running wires to the various power taps around the track from the posts opposite each controller post. Since the track needs to be taken apart I'm going to use plugs where the track separates to make things a little easier rather than use spades on the terminals.
Right now I'm cleaning the track up to get the best continuity possible, it's been sitting for a while and the tops of the metal have a lot of black coating. It's coming off pretty easy with one of those drywall sanding pads and a little brake cleaner. I've been thinking about soldering pieces of wire between each track piece for better continuity. I figure it's going to be tedious but what the hell, I'm an old retired guy now.

I haven't figured out how to put the track onto the tables once they're wired together. Maybe do 5 piece sections at a time.
Which leads me to my next question. I've read several threads regarding attaching the track to the MDF. It looks like hot glue is one means. I've also seen "track clips" that are "Z" shaped brackets that look like they fit over the track and then are screwed into the table, but I can't seem to find them anywhere. I don't want to drill holes into the track so that's out. There are those pieces that go across the bottom of the rails but I tried brad nails in them and the guide hits them so that's not going to work.
Anyway I'll try and post photos as the work progresses.
Thanks for all the help,
Joe