KEVIN
Your NEXT plunge will be buying Ross curve tracks. It took me a while to do this because I'm basically cheap!!
However, if you run Lionel (not MTH) trains that specify 072; bending Gargraves to make reliable 072 curves can be a pain to bend and cut.
Also, take a look at the curve on curve turnouts those are real space savers.
if you plan on using DZ-1000s instead of the DZ-2500Cs and want non-derailing, make sure all your transformers are phased when following DZs application wiring diagram.