Skateboard Deck Restoration

any kind of oil, stop-rot and other wood-hardener chemicals
will not restore the structural integrity of the wood itself.
my personal suggestion is to make another one if you want
to use the same trucks.
the amount of weight and force applied to that skateboard will be
more than it can handle and will fail. it is not a life threatening
issue such as a tablesaw kickback. . . . it will just break and everyone
will stand around and have a good laugh at it and carry on about your day.
your board = your call.
good luck in your project. (let us know how it goes).

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Beyeriii - after reading your post again, you do not say anything
about the history of this board.
how long have you had it ?
when was the last time it was used ? has it been in storage for a long time ?
how big are your cousins ?? I have a couple of cousins that are over the 300# mark.
have you ridden it yourself in its present condition ?
I would put it through its paces now with some aggressive maneuvers
to see how it holds up before putting a lot of time and effort into refinishing it.
unless - you just want to make it a static display somewhere.
let us know how it goes.

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