Ha.. Welcome to the club as far as this problem goes...
You have two options:
1.) You can go HPI rotostart.. To do this, you need 1.) the backplate and 2.) one-way bearing, from an XTM 24.7
Look it up on ebay..
or...
2.) There is a Sportwerks bumpstart backplate.. You would then need a starterbox...
http://www.amainhobbies.com/product_...oducts_id/4331
I ordered the XTM backplate and hope to start the Mach in my Hyper ST with Rotostart....