Wow, lets see if there are seeds for one of each S.P.E.C.I.A.L. (/fallout). If there are, and he can keep killing things in this dungeon for just 1 workday, odds are fairly high that the level cap won't matter anymore: with S-rank he's guaranteed to drop something each time, and while there are probably booby drops like +1HP and +1MP, only an unlucky streak would ruin these plans.