I’m looking for a used splined trials wheelset fully built with cranks and a tire. Preferably 100 dollars or less.
good luck with that. the crankset would probably cost more that that. 
i have a rim and tire for umm say 30$
It sounds splined.
Unless it’s broken or bent, maybe even a combination of… I think your best chance is getting the KH moment or the Qu-Ax crank/hubset with a KH rim, though you would be over the budget.
i was just trying to help. i have a slightly bent hub (onza) thats laced to the rim now. i would give it all to you for like 50
to ask a really stupid question, what are the disadvantages of having a bent hub?