Not a big deal if there is NO toe. Just make sure that IF the manufacturer built in some toe that the gear is installed with toe-in to the front. Go ahead and mount the wheels. Measure the inside of the wheels both front and back. I would use 2 1/4x20 nylon bolts on the front of the LG and 1 1/4x20 centered to the rear. That way there will never be a "which is the front" question. Don't ask and I won't lie.

On takeoff to keep the TW in contact with the runway for a bit longer use some up (back on the stick) elevator forcing the stab / elevator down. Not too much because as your speed increases the wing will lift and its butt will be dragging on the ground. Personally, I like long straight takeoffs rather than the 2-step and away superman lift offs that have a 45 degree up angle. It's just me.