From what i read up on when looking for track plastics is that hot bodies are very hit or miss. Some people had no issues, others basically threw them away and bought a better brand. So do some research on your specific bike and see what others have said about the fit. Also, hot bodies are known to explode during a crash. As in they break/crak instead of bending. But for the price, you can replace them and still be cheaper than buying a set of sharkskins.
I ended up with armour body. I haven't crash tested them yet but the fit is good. Looking back i wish i would have spent the extra though and got sharkskins. Drilling the holes were a pain and i had issues getting the windshield in but that was my fault. The sharkskins come predrilled.
Since it is a trackbike, i just used spray paint. It looks good from 10ft away and that all i wanted. Since there is a good chance of it going down at some point, i didn't think a $1,000 paint job was worth it to me. Others love the look of a professionally painted bike.
Just my 2 cents in all this. Good luck in whatever path you choose.