I don't think you will get a decent one for 300 pds. The ESP/LTD ViperBaritone 200 is not produced anymore, so you would have to get it used. The VB400 is IMO the best fairly inexpensive baritone on the market - but it's at least 200 pounds over your budget.
They all have 27" scale, which is what I like.
I suddenly feel the urge to show off my baritone... :D sorry for this ;-)



