I was hesitant in choosing this event in the beginning of the year, deciding between mission possible and wright stuff (Umm... what was I thinking

In preparation for next year, since I'm a bit behind everyone else who had exposure this year, is there any suggestions out there? I was thinking of buying the Freedom Flight Kit but I thought it would be a waste if I buy it this year and get some practice with it, then find out next year that the dimensions change, having to purchase possibly another kit. My friend proposed that I buy this kit - http://www.ebay.com/itm/Penny-Plane-Ind ... 1629221590 , just to get experience with Wright Stuff materials and because it's a lot cheaper than the other kit.
Any other suggestions? Maybe a site where you learned how to build it from scratch? I have ZERO knowledge in planes.