i recommend going to a bootfitter! a good boot will make a shitty ski good, but a shitty boot will make the best ski a shitty ski. and just because you're spending a lot of time in those boots makes you wanna get the perfect fit.
with regards to boots, throw out any and all pre-conceived notions and what boot you think is best. The best boot for your foot is the one that fits. Get custom made foot beds and go to a great boot fitter. For example Aaron Blunck skis in a race boot
go to a bootfitter I thought I would like dalbellos but when I tried them on they were really not comfortable and it turned out that full tilts and nordicas fit me the best so I went with the full tilts and got them heat molded, they are so comfortable now I don't even unbuckle them when I go in the lodge. But if you want to find them cheap you could go to a boot fitter and try some different ones on and see how they feel. Pick your favorite one and get a pair off the sell and trade forum or eBay or something, that will be your best bet for getting them cheap. Then
Get them heat molded or something.