I have a 1993 Diamondback Ascent with the original 7 speed drive train (Shimano Atlus A10) and the original Araya CV-7 wheelset. I'd like to swap out the wheels for something a bit lighter, but I've had an impossible time finding 7 speed wheels online. 8 speed seems to be as low as I can find for MTB wheels. I'm pretty sure it's not possible for me to put the original 7 speed cassette on a wheel made for 8 speed (please tell me if I'm wrong about this!), and I really do NOT want to go through the expense of changing the whole drive train to 8 speed on this old bike esp since it works perfectly fine still after all this time. I really don't want to spend an absurd amount of money on new wheels for this bike, so does anyone know what my options are here? I was expecting to be able to find 7 speed wheels for next to nothing online, however that does not seem to be the case.