RIP Jim Sinclair.
Still remember seeing back in 91/91, all three volumes of Balus for sale at ridiculously cheap prices at a business not far from Jacksons. I dithered at purchasing them back then!
Since then I managed to track down and buy volumes 2 and 3 at prices that whilst were a bit more than I would have paid back then, were still quite reasonable. Found a special edition of Volume 3, personally signed by Jim, and paid a pittance for it really.
Try getting volume 1 though:
The last one I located was through some rare books mob. And they wanted nearly $800.
No, that is not a misprint!
As for Sepik Pilot and the others....good luck! Hint; have deep pockets!