Red.....heal/toe is the kind way of matching engine/input gearbox shaft speed and keeping shift stress on a gearbox to a minimum. Sure you can straight shift but in the end its going to catch up with you. You must have damn big feet !
Other than that I think we are saying the same thing, lightweight flywheels improve an engines unloaded rpm response and not a lot more.
If your still keen to buy one the link below will take you to a site that has the details of the guy who built mine, first class job and it cost about $500 Aus or about $250 US.
http://www.billzilla.org/shopping.html