Kaw_admins thread seems to have been removed. All I can remember is lv 3 is 100b. Lv 2 150b. Lv 1 50b.
Just go to the strategy section, go to Darkassassin's T5 build calculator thread, go to the last page and you'll find an updated version for T6. Previewing the spreadsheet will give you all the info you might ever want about buildings and lands.
@CaptainSpaulding LOL. But yeah, what others said earlier. Wulf should have a guide on T6 too if I'm not mistaken.
Whoops sorry not 200b and didn't mean to post look at wulf's stickied thread page 6-8 or something it's there