Gregg at MCM suggested blue some time back. Here's Tamiya Bright Blue & Gloss Black with Spaz Stix spray chrome over both.
kit gas tank stripped, sanded to #2000, no primer, Tamiya Bright Blue air-dried for 1 week, Spaz Stix spray can chrome light coats. no clear
kit roll bar w/3rd leg added, no primer, Tamiya Gloss Black air-dried for 1 week, Spaz Stix spray can chrome light coats, no clear