You could get a bare used Rega and add an arm with the features you want. But I think the value of Regas is mostly in their arms.
There are various inexpensive aftermarket VTA adjusters for Rega arms. The most interesting are the VTAF ("Vertical Tracking Angle on the Fly") and the extensive mods done by Jeff Spall.
I think adjustable azimuth may be overrated; if you want to get a better vertical alignment than doing it by eye, it involves some external test equipment (which may be just a soundcard and some software).
Without azimuth adjustment, you do need to worry about the arm not having a twist, the mounting plate being absolutely flat, (both rare problems as far as I know) and the cantilever and stylus not being straight (unfortunately a more common problem than it should be). But all of these are reasons for rejecting an arm or cartridge and sending it back for replacement.
There are various inexpensive aftermarket VTA adjusters for Rega arms. The most interesting are the VTAF ("Vertical Tracking Angle on the Fly") and the extensive mods done by Jeff Spall.
I think adjustable azimuth may be overrated; if you want to get a better vertical alignment than doing it by eye, it involves some external test equipment (which may be just a soundcard and some software).
Without azimuth adjustment, you do need to worry about the arm not having a twist, the mounting plate being absolutely flat, (both rare problems as far as I know) and the cantilever and stylus not being straight (unfortunately a more common problem than it should be). But all of these are reasons for rejecting an arm or cartridge and sending it back for replacement.