I like your airplane hauler....Toyota Matrix or Pontiac Vibe. I bought mine specifically with hauling a plane to the field. With the fold flat front seat I can haul a 50 - 70cc plane no problem.
Are you planning to go with a wing tube or use the stock plywood spar plug in setup?And here are the plans for the Extra 230.
One of these days I'm going to build a 50cc pattern airplane. Here are some designs I was working on for fiberglass fuselages. One is a more classic Tipo shape and the other is like a newer Krill Spark Evo. Both would use a DLE 55 rear exhaust with an enclosed tuned pipe.Info about the lightning is here: http://www.eurekaaircraft.com/plan_kits/lightning.htm
I contacted the designer and he emailed me the plans. JAG has them printed so it appears we are going to build a couple. Eureka has kits available, and that would be much easier, and probably even cheaper but we are kind of stupid sometimes!