What warp shuttle? Anything like these...
Anyway, on to the O-Wing...
Rotate the wing cutouts............Check
Shorten the forward body.........Check
Match the wing/body ends.........Check
Cockpit change........................Check
Hyperdrive rear like X-Wing......Check
More rounded fuselage edges....Check
As for the other stuff, we need to talk. I can't make the top half of the fuselage any thinner, no one but those weird cloner aliens would fit inside it if i did, including your R8 droid. The top is currently about 0.8 metres across anyway, so i think it'll have to stay the way it is. As for the wing size, I'd prefer to make it larger and stand
further from the body personally, if i move it closer in it's going to be more of a spoiler than a wing and your fighter is going to come out of this shaped like a brick.
With the wing as it is now (or larger) you are quite right about the landing gear, it would look dumb, but to be honest it'll look spindly even on a smaller wing, it has to reach so far. I'd prefer a solution similar to the X-Wing myself; stick landing gear in/on the two lower engine pods and have one long forward gear in the underside of the nose. Much more stable and believable, and easier to animate.
Once we have the gross details sorted out, it's on to adding the real nitty gritty, pipes, panels, guns, scorch marks, pilot, colours, etc.