I was at a few wreckers yesterday and saw some desireable trans cores.
At Coast auto wrecking on Mitchel Island they had 3 IRS Bug trans on the shelf. One was the superior bent rib single side cover trans. But the guy insists that its a good trans and wants $395 for it.
At A-Part, also on Mitchel Island there was a factory 73 swing axle trans still in the car. If you have an early car, this trans has upgrades that 68 and earlier g'boxes don't have. Like the later guided throwout bearing, bigger pinion bearing, splined gears, etc.
They also have an 091 Bus 'box in a green 78 Westy. Both of these are $150 each, you pull, or $275, they pull.