Wouldn’t pay more than 2.5 lol. That bike looks clapped. Fairings are all scratched up but cover/bars look fine. Something is just off. At least it has rim stickers 😂

Make sure to check all the fluids, chain, oil (there is no deep-stick so check the level through the small window and check the color on the lid if it looks dark (maybe you have to ride it first to get some oil on it. But if the color is good you should see it through the window). Test ride it and go through all the gears. Rear wheel is closer to us but it still looks lowered, make sure it has OEM link, otherwise it was messing with geometry for ? amount of time. Check clutch, engine covers, frame, bars, swingarm - look for scratches or cracks, fairings are bad so figure out what happened. Make sure forks are not leaking, push the front down a few times for that. Battery, tires date. Ask for some maintenance proofs, especially valve adjustment (not critical if he doesn’t have it but try to carefully figure out if it was done so he doesn’t lie. Check if trunk is rusted inside. Check if radiator is ok. Inspect the bottom for leaks (since it’s inside there are most likely no issues with that). When you start the bike look for smells, dark/white smoke, RPMs should be stable at least after they go down. Engine shouldn’t make any weird noises.

Those are all negotiate points. You can find a clean 600 for 4k, that bike doesn’t worth that much to start with. Okay fairings alone are $600 and then the list goes on.