I purchased a Jean Nantais Lenco Reference Mk III a year ago. It's a suspension-less design. Jean recommended a 1/2" slap of marble laminated to a 3/8" think slab of acrylic that is the top layer. I put Herbie footers under this platform to isolate between my heavy Merrill Stable Table stand. Works great to my ears. I used maple remnants (beautiful ivory color, all polished and finished off) purchased from a local floor and tile shop - $200, and the acrylic from my local picture framing store - $150. Cost effective, relatively speaking.
