WTB LP104's Doubles

I'm looking at getting my first set of cave doubles (Backmount).
Size wise I was thinking LP104's or similar with plenty of air for caves.
I'm located in Jacksonville FL. Also I'm trying to keep it in the lower price range
area as I just purchased all my other cave gear. Let me know what you got

I have a set of lp 104's. original hydro 3/00 & 4/00, current hydro & vis 11/12 thermo valves and no name 2" bands. $450.00 and I'll be in Marianna March 7th - 11th.

Kaine