I just found that site yesterday and was reading up on how much you can bore the blocks. Right now all the 6.0s I'm finding on FB Marketface are $1500+. I briefly considered boring and stroking a 5.3, but that ends up costing about $2000. Ugh. It doesn't help that I'm low on cash after two serious car repairs in the last couple weeks.
Copart dorked up my account a couple months back, and when I tried to get it fixed they ignored me, so if I want to buy a wrecked 3/4 ton, IAAI is my only choice. Fortunately time is on my side, so I'm going to take my time and find a good deal.
My ideal goal is to find two LQ4/4L80 trucks, because we'll be building a spare drivetrain. I'm in favor of the LQ4s because they don't require a spacer to bolt to the 4L80, but I know I'll need to change the reluctor wheels.