RW: Based on my ARF version of the four* and reading other threads, the small gap between the leading edge of the wing and fuse is normal. I fuel proofed the area and added a small strip of foam that seals the gap when the wing is installed.

Re misalignment of the landing gear. I'm sure you're aware of seveal solutions, but I think I would just ream out the two outboard holes to allow alignment. If the screws then won't prevent it from shifting, I would add two more outboard holes and secure with 1/2 inch self tapping screws.