Here are some helpful links for you:

Rom-air retract install (I like them the best of all):

http://www.rcuniverse.com/forum/m_2434444/tm.htm

Wing sheeting and leading edge solution:

http://www.rcuniverse.com/forum/m_3092876/tm.htm

Spring Air retract install:

http://www.rcuniverse.com/forum/m_2827386/tm.htm