Given that a NOS front fender for the '74 CB550 goes for $250.05 from Western Honda in AZ...retail at $334.29
Same fender for '74-'76 K.
The '78 fender (F or K) 004 FENDER, FR. 61100-390-671 is NLA from Honda.
032 FENDER, FR. *MRCR2* (CHROME PLATING)
61100-341-700XW $334.29 $250.05
So, add that to a nice rear fender... which is NLA for any of the 550Ks or 550Fs...
That doesn't include the tail lamp holder which is also a NLA chrome part.
Pricing good chrome work you know isn't cheap.
So, the bike is worth more than you paid for it just in the chrome parts of the fenders, tail lamp holder and fork ears.
Yeah, I am amazed at how clean and pristine the bike was and the price you got it for is a steal. I wish my chrome were half as nice...
Some people have all the luck.
You should buy a lottery ticket you might win.
David