It's a very tidy build and nice work on the cab! I'll bet it feels really good to get to this point. Now for the bad news. It could take years or decades to get the monkey off your back. Amp building is addictive.
I have one small comment. I think I see two large black resistors and one large white sandblock resistor strapped with zip ties. I've got some concerns about the potential for excessive heat build up. I'd keep an eye on that or maybe do a pre-emptive rework of it to give a bit of air between the parts. It may be more than enough to just place some spacers between the parts and then zip tie them again. Something like nylon bushings cut in half would probably do the job very well.
Thanks Phil I'll bear that in mind.
I used clear tie-wraps as opposed to black assuming that they would discolour if anything got too hot but it wouldn't be too difficult to give them more air just in case.
