I am also looking into Summit Racing branded paints, the interwebby says they're made by Kirker. Here's a price list of the same plan using those:
Wax and Grease Remover SUM-UP404
DTM Epoxy Primer Gray SUM-UP230G - $52.99/gal & $20.99/qt
Product Data Sheet
Epoxy Primer Catalyst SUM-UP231G - $41.99 & $17.99/qt
Single Stage Acrylic Urethane Wimbledon White SUM-UP322G - $83.99/gal & $25.99/qt
Product Data Sheet
Slow Urethane Activator SUM-UP102 $23.99/qt
Problem is, they don't seem to have the "School Bus Yellow" color anymore. Now looking into TCP Global paints, which come with some decent feedback. They have both Wimbledon White and School Bus Yellow. Next post to contain list of materials from TCP.