My rough calculation of the price:

HOFF has 7-11 threads. You get 1 moar piece after pwning a thread, so that’s 7-11 pieces per visit. Also this forum drops 5 different moar files, so unless you’re very lucky, I think you will need about 50 visits to get all the pieces. With that 50 visits, if you grind other forums for Flezz, you will get at least a Venus per visit that’s worth 40,500. 50 visits can earn you 2,025,000. You can also get some nice moar files on the way, and I think 1,000,000 would be a fair price for these additional files. So in total, 3,000,000 would be a reasonable price.