how deep is the rust? is it just superficial and not deep or is it deep, embedded rust?
added some pics of the rust. tryed to get better pics but battery died when ever i had flash on
Also, is the rust in the binding inserts that you want to use? If so, can you work it out by bolting/unbolting a few times?
Honestly, if it's positions you'll never use I'd just clean it, wd-40 it, and not worry. You'll replace the board before the rust will do any damage to the board itself. (Unless you're planning on re-selling it someday?)
If it's positions you need and you can't clean it out, the board is a doorstop and should be returned asap.
some of the positions with rust i do plan on using but yea tryed bolting unbolting few times removed tiny bit but majority still there, should i try wd40 on those or no