'Fraid not.Have you tried Mardave themselves?
They reckon they can supply most parts for cars 20 years old(though not Meteor wheels)
Here's their website:
http://www.mardaveracing.com/information.htm
They have a contact e-mail addy and phone number.It might just be worth giving them a call.
I missed a running Meteor and a load of spares the other week on E-Bay by seconds.There were 2 chassis(standard and a rare gold anodised LWB),2 gearboxes,2 front ends and a load of wheels and tyres.
Here's the guy's E-Bay name that bought them:
http://myworld.ebay.co.uk/amandabunn2407
He seems to be a bit of a buggy breaker.I asked him about a pair of rear wheels but he didn't seem too keen on parting with a pair,but he may fix you up with a gearbox.
Miggers