Well that sucks, sorry to hear the retracts didn't survive.

Instead of redeigning the wing spar location you could mount the main gear 1" behind the main spar and use down elevator for the rollout to keep the nose gear planted. Just a matter of letting off the down elevator as it comes up to takeoff speed. The opposite of what we do with tail draggers.

Nevermind, being a pusher that probably wouldn't work.