Yeah, I built a 2000s cab last summer with my old man, and we're probably going to do another one coming up pretty soon (spring/beginning of summer). I went ahead and did the 2000s partially because....well, what the hell, why not? It's big and impressive and awesome. I also chose the 2000s design because I A) planned on getting a 2000s amp (which I now have), and B) my Bassman 300 wouldn't have fit on top of a 200s cab. We bought the plans from Conrad and they also came with a parts sheet. Beware, though, that there's a few discrepancies, so my cab actually came out at 30.5 or 31" across. It's not that much of a difference really, just confusing. Ask away if you come across it, I can't remember exactly what it is at the moment. I backloaded my cabinet, as per Conrad's instructions and the original cabs, but it's kind of a personal choice, doesn't really matter either way. I like the mods you're going with, and I'll be honest, I though about those type of casters myself. HOWEVER, you'll probably have to make some design mods to the plans, as the back panel of the cabinet goes all the way down to the bottom, and you'd need to shorten that panel and make the part of the lower back non-removable to use those. I also seriously considered that paisley tolex, and marshall grill. However, I'll eventually go the traditional Sunn route so that it matches my 2000s and will match my redressed Bassman 300. As it is now, I've stained it in a deep walnut, and bought an American flag from the hardware store to use as a grill. Here's a tip: if you can get ahold of a Festool, it will make your life 5000x easier. We laid out, checked our measurements, and ripped all the pieces of the cab in an hour and a half. Piecing it all together probably took 45 minutes, and then it set for a good 6 hours. It's a really simple cab design, fun if you're just getting into it. Any questions, feel free to ask. Here's a few shots of mine:
Cutting speaker holes.