Was just doing some checking and found that B H Hanson doesn't even list them. The closest I could find was a modded 260 and, with a mid mod and no exhaust, it's $385.
I know I bought a G230 from them years ago with an "Indy" mod, that was in the $250 range back then so, not knowing if yours is modded or not, you're probably looking at between $150 and $200 for a starting range. If you had a tuned exhaust for it, instead of the can, it would be worth more