Bob Jackson (Vigorelli, etc)

I don't like my job, but I do get paid. So, every once in a while, I like to spend some of that cash to make feel me better. I like nice things.

Have been thinking of buying a Bob Jackson Vigorelli in British Racing Green with yellow transfers and lug lining (a bit like the Lotus 7 from The Prisoner), but there are some things that I don't know.

Not sure whether or not I want it threaded or threadless. I think I am forced to choose threaded as I feel it suits the frame better (and threadless could be considered blasphemy).

So, the questions:
A) The steerer will be cut and threaded from the factory?
B) Where to get the headsets? What options are there?

I've checked out Mercian Super Vigorelli, too, but, I don't know, BJ seems, for some reason, more likable. I've understood Mercian has tighter angles, but I am not after a super pure, boards only, track machine.

BJ will install any headset or BB you want for nothing. I just got a 105 headset from them for about £15 I think.