New to the thread, found it while searching for landing gear references of my own, and just wanted to say awesome work! I'd previously seen the resin kit that you were using, and while it's got some great detail it wasn't very accurate to the film. You've done an awesome job with it!
Incidentally, in regards to this:
I've done a lot of study of my own both out of general interest in the X-wing (aside from the 1701-A, my favorite movie spacecraft), and for 3D model work, and based on the dimensions of the cowling and engine, I don't think the engine actually occupies the full cowling. In fact it looks to be close to half the diameter of the cowling. I've been trying to come up with a workable blueprint for the X-wing's internal components, and my personal theory (partially based on Joe Johnston's productions sketches) moves the hyperdrive to the upper engine cowling, and the "power converter" tube the old West End Games and derivative materials show running along the "spine" of the engines is a specific component of the hyperdrive system (not unprecedented, some sources put parts of the hyperdrive in the engine cowlings). The lower engines use the same space for the landing gear bays. So, that actually solves that problem quite neatly: Engines only occupy the inner half of each cowl, with the hyperdrives in the upper cowl and landing gear in the lower.
ANYway, like I said, great work.
Also, do you by chance have some other good references of the landing gear? I've been going crazy trying to find anything that shows them clearly.