Not exactly the same front wheel size, but here's what I've been running for the last 7,000 miles on my High Boy.

Fronts are 15x7 Torque Thrust 2's with P195/60R15 (23" tall) BF Goodrich T/A tires. 15x10 rears with P285/70R15 (30" tall) T/A tires. They work fine, but I run the tire pressures very low and the tires squeal a little "only during braking" when you go over painted STOP lines. They show no wear pattern at all so far.