soarrich,
You are right. Ideally the axle centerline would be even with the leading edge, or slightly forward, for best handling and reduced nose over tendencies. With a kit build I think it would be easy to put the gear mount exactly where you want it.
My conversion was a Big Stik ARF. I probably could have used two smaller ply pieces (one in front of the bulkhead) but it never tried to nose over with the location I settled for.