Here comes the second challenge if you decide to have a landing gear bay installed.
The wing spars in this design is of an I beam type. However, the rear spar goes right thru where the gear housing is located ( that is because Yoav's designs are all in the flying position and thus the internal structure is suited for that purpose ).
I added a wood dowel just aft to clear the bay opening and added a modified thinner rear spar in that position.
The rest of the structure is modified to fit with the new spar.
Isaac