IMHO, if you go vintage get it from the classifieds here. I would also maybe spend a bit on it because your first will always have a special place in your heart. Get one that you really want.

If you go new SRD's razor/strop of the month is a great deal.
given that you have a 250-300 budget that is more than enough to get up and running, you may be able to get a new and a used.

Oh yeah Welcome and good luck