Wow, here is the one thing you got right, finally - this is not a forum to sell you ware for exploitative profits. This is a forum for a like minded people, loving their hobby, collecting nice or not so nice bikes from different eras and conversing (albeit mostly via online) with other people having similar taste - that's why so many different groups on here, from BMX to fixed to 19 century bike and anything in between .
When selling their stuff, be it NOS or well used, they don't have a profit in their mind as the main objective, no, they prefer to sell at reduced price to a like minded soul knowing it will go to a nice home or help someone finish that built they have patiently collected parts for. And hoping that they'll get a similarly good deal in return one day. Which more than often does happen you know. And yes we often send stuff free of charge too. Karma is a bitch that needs feeding, I was told once.
You seem often to mistake what you think you know to what you really know, and that includes your assumption about me or other people on here, making somewhat snotty remarks about how much we are prepared to open our purses or not . Well, I own more than a fair share of bikes, including some with mint NOS parts just FYI.
To return to OP's ware he is trying to sell on here (or elsewhere) and your estimation of £1500-£1600 for the set, you are so far of the realistic value of it that is just not worth going into it. But hey, happy that you've found hubs and paid £185 for them, but realistically you could have
these or
these for less than 1/2 the price.
Now I'll best move out of here 'Kao šišmiš iz pakla' as sang by the late Meatloaf...in Croatian. Yes, I'm fluent in that lingo too before you ask