Thanks for your inquiry. The short answer is that I sell GAZ shocks and springs and they do have applications for Marcos cars that are, in most cases, very similar to what I already sell to my customers. A coilover that is both height and bump/rebound adjustable (single knob) is available for the coupe, Mantula and Mantis. The delivered cost for 4 shocks and 4 springs for the coupe and Mantula is currently $602 and is $628 for the Mantis.GAZ has an application for the Mini Marcos as well.
I regularly bring over parts from Europe so adding other types of parts to an order is no big deal as long as I have an existing supplier agreement. Some of the items that may be of interest are European Ford parts, Superflex bushes and some Lucas parts. I also have arrangements with domestic suppliers and have very good prices on things such as Triumph brake parts and common Lucas parts. I can't stop without mentioning the gear reduction starter for the 3.0 liter Essex cars that I have made here in the US and sell for $189. It is far less expensive than anything I could find in Europe.
Bill