I ran across a rummage sale yesterday and found this 78 CB550K with title. The good - 9,700 miles, stored inside, chrome looks good, rims good, tank looks clean and hardly faded, side covers no cracks & all tabs OK, tank and side cover graphics and badges are nice, OEM exhaust with #4 rusted out, but the other 3 look pretty good. Does not appear the bike was ever down. All parts are in place & has key. Has a box of parts that were removed for the fairing. Shifts through all gears. The bad - motor is locked up and head gasket shows the weep. Owner has installed an oil cooler. Fork seals leaking. Carbs are off the bike but there. OEM seat is torn. Last run in 2006. He is asking $600, but said he would go lower. I think I could land it for $450. Thoughts??? I think I am hesitating as I was never really into the 550.