Sorry I can't give you any guidance but it sounds like a fun project.
I do not think that anyone has a lock on the base design. I would suggest that you go the DIY route and design something that you find pleasing, making sure to use the best available materials. I think using several dis-similar materials would aid in vibration and sound dampening. Most designs seem to go for using two or three materials. (wood, acrylic, graphite, aluminum, plastic, sorbothane, rubber, MDF, copper, leather, delrin)
Thanks for your responses guys. I agree with all your comments - certainly should be a 'fun' thing to do and (extending the gray matter a bit) am even thinking in terms of using precast concrete. The small pebbly type. :))
Zd542...appreciate your suggestion but I'm in the UK so will make that a bit difficult/expensive. Hope to post an update in due course. !!