superstarselect

i recently aquired a 18 cc gas engine from a weed eater and after finding that it wasnt suitable for a plane i decided to try it in an rc boat. i have no experience in rc boats at all. i have several problems the first being that i dont have a boat body yet. the second is that im not sure how the seal is made between the shaft and the boat body. third is that i not sure how to make the engine compatible because the shaft is inside a wheel thingy and to get to the shaft i need to remove the wheel thingy but the catch is that the wheel thingy contains magnet which produces the electricity for the spark plug. is it possible to use a battery for the electrity instead. what size boat will i need, i wanted a deep vee any suggestions. about the only thing i dont need help with is the radio and components. i have never done a project of this nature am i biting off more than i can chew?also when i took the cover off i broke the pull starter how do i get the engine turning to start, a plane starter on the prop of the finished boat? a gear on the shaft with an electric motor? i really need help and any advice is apreciated.

OLD_SLOW and in the WAY

[link=http://www.shark-racing.com/Ingles/Sobrenosing.HTM]Start reading[/link]