Replying to Straight skis for urban?

alright so i might hit one or two urbans next year, tops.
but i don't want to wreck my skis and i'm too poor to get designated urban skis to use twice.
buuuut i found some old 1990 straight skis in my barn and i could probably get my hands on some cheap bindings by next winter. i would centermount them and put some wax on em. they're obviously not twin tips but i don't think it'll really matter.

good idea? bad idea? anyone else done it?