SoliDoodle was always a company you bought from then ended up fixing things.
I have a SoliDoodle 3 I bought used.
It's my FrankenDoodle
.
Actually the owner of my SolidDoodle 3 was the one that introduced me to NextFAB when I bought it.
I'd go with the Prusa I3 and maybe try this:
http://www.makeblock.com/melephant-3d-printer/
(It's not really discontinued, it appears to be low on stock at the MakeBlock store.)
I have over 14 3D printers (assembled, I've been part of RepRap a long time so I have buckets of parts).
My favorite for 'just print' is the UP Plus! and UP Plus 2 but they don't have the build area you specify.