Hey,What would the average price per board say 4x8x5/8" say 8ft ceilings-walls just to hang the drywall just to get a rough idea for a friend. Thanks in advance for any feedback!

Depends on if you want a handyman or a drywall pro. Around here most handymen charge about $25 per 4x12 sheet hung, screwed, taped and mudded.

I own brd wall systems in green bay wi and I would charge for hanging 4 x8 sheets around 8 dollars per sheet