Unfortunately in you case Hobby Lobby is the only place to purchase this kit. They own the exclusive distribution rights for this plane. The only other option you would have here would be to purchase the plans from RCM and build it from those plans.

[link]http://rcmmagazine.com/store/store-plans-catalog-tem.html?item=plans:PL-616&sid=0001MbdbQ1fqKVwsDE5y4O1[/link]

Ken