dealer is without doubt THE most expensive way of buying a bike, or anything else for that matter.
They will obviously have incentives, any warranty claim is always hard work to get sorted, and guarantee you will want something else by the time it runs out. So not worth buying in the first place. And if its that old a design it should be well sorted by now.
Its hard if your heart is set on something to say no. But having made your mind up. Take the opposite view and look at reasons why not to buy it. If you still have the same answer at the end fair enough imho.
But ffs dont spend that amount on it. Its your cash mate, and i actually quite like the look. But like the dealers its all ancentive, when you get down to it, money for old rope, and they know it. Hence their presence in wsb perhaps? What comes of that should be very interesting, but not of your taste i guess.
If you ride one, look down, youll see the cylinders are not in line due to the crank pin offset, obviously, but made me laugh i can tell you, and when you blip the throttle you can feel the bike move to one side due to engine rotation. Days of steam.....almost.
Oh and of course the cylinder heads for crash bungs.