Not really complicated. Each track system has it's nuances for connecting power, joining and fitting. There are a few ways to get power to track. Keep it simple, as you are just learning this stuff. Build the table, get the track, and yes, a couple of terminal joiners, and some track joiners and assemble the modified inner loop and leave it loose, hook up the power and control at one place and try and engine.
While all of this going on (building your laboratory), continue to read and learn, look at the forum stuff (search) and anything that you can find on the internet.
Even if you get enough track to make an oval, (O63 circle and some straights and joiners) ,you'll have what you need to try everything and learn how it works.
Then, you can decide on roadbed, track screws and if you need more power feeds. (you will for DCS).
Use 16awg stranded for your testing. You can decide on wire sizes when you are ready to go.
yes, it is a useful book with a lot of information. I bought it for the plans for The "NEW" York Central- O-31.
PS - you will need a multi-meter to save headaches when playing with electric trains. The Harbor Freight versions work great and are inexpensive. You will need to check connections using continuity and measure voltage.
