Yep, Good series 24 Dual Purpose batteries in the 75 AH range should run about 75 to 80 bucks.
HOWEVER, your converter should not have boiled your battery. A shorted cell should have tripped your converter off line. That it stayed on and kept shorting into the battery needs to be investigated BEFORE you hook up a brand new battery for it to eat. Just my opinion.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW