I would at least put the requirements for multiclass in again, it really doesn't make sense to make a wizard with 8 intelligence or a fighter with 8 strength, just because you can get items later.
Actually you can make a Fighter with Str 8 just fine in D&D5 ?
He has to have Dex 13 then, though. Only if his Dex is lower than 13, he has to have Str 13 or better. Either works.
