True.

These HDMI controller boards include the inverter boards for the displays, right?  "Reversing" boards?  If so I think I've found it:

http://www.ebay.com/itm/like/251258227613- $36.89 - Board

http://www.ebay.com/itm/New-Apple-661-2773-B-12-034-iBook-G3-G4-LTN121X1-L02-Matte-12-1-034-screen-/121178625424- $25 - Screen

That would bring the total cost here to:

Logic Board - $125-150

Display Board - $37

Screen - $25

Keyboard/TP - $25

2x USB Hub - $5

Wifi Dongle - $10

SD Card [say 32gb; half RAM and half the System drive] - $16

500gb SATAII drive - $27

$295

Did I miss anything?  Also I think the 2gb version is probably necessary if one, theoretically, wanted to run Mavericks.