Do you mean regional? or Community Theatre?
We have several excellent community theatre companies in the area. Last season Meadowvale theatre did a fine production of MISS SAIGON. This fall they are doing SWEENEY TODD. So a production of LES MIZ is not an impossibility.
We don't have regionals here that generally do large scale musicals. Canstage goes for smaller shows (LITTLE SHOP, AIN'T MISBEHAVIN') when they do commercial musicals.
Cast albums are NOT "soundtracks."
Live theatre does not use a "soundtrack." If it did, it wouldn't be live theatre!
I host a weekly one-hour radio program featuring cast album selections as well as songs by cabaret, jazz and theatre artists. The program, FRONT ROW CENTRE is heard Sundays 9 to 10 am and also Saturdays from 8 to 9 am (eastern times) on www.proudfm.com