CB750K1 buyer beware

[Trigger]

You see a bike up for sale and you think that looks nice but, then you start scanning the pictures to find it has a 750K5/K6 tank and the cylinder head is off a later 750. Can not see properly but, the barrels may also be wrong. Why is the seller not advising this in the listing 

 https://www.ebay.co.uk/itm/225118426941?hash=item346a1a973d:g:I8sAAOSwd01i-RyG

[Bryanj]

Cos its worth more if he doesnt and its only eagle eyes like you who notice trigger, you could ask the seller a question then its on ebays record, not that they would care