For looks the SBP kit looks waaaaaay better on a panther than a pro mod. How are you planning on mounting the engine? You are going to have to mount it low, there isn't much clearance with that bar. Not too sure how wide the motor is so you will need some wide cranks as well. What are your plans for forks, wheels, etc?
Edit...I found a thread with a panther with A HS but a Qmatic tranny not much info but there is a picture.