Yes chap, bell-fruit scorp4 board you are showing there, so not sure what you are after..... if it is scorp4, they do appear every so often, but if it's a Maygay M1 a / b, quite difficult to obtain now, and even when you do find one, prices are generally £70+ (More often near £80).
I do as it happens have some M1 a / b boards in right now, but are faulty with unknown issues (The watchdog circuit is yapping it's head off like crazy), however battery damage is limited, so they maybe repairable, but due to the amount of work I have on right now, no idea when I will get the time to look at them.
Pic of an M1 a / b board here (Green = a version, Red = b version, but both should work with what you need), so you get an idea what one looks like.