my suggestion would be to look for a Juki or a janome 1600.
these are very basic machines, straight stitching and a larger throat..i think 9inches.
you may be able to pick up a used one at a sew and vac place or on craigs list.
no fancy stitches at all. i had the juki 98QT i think, and it is a very good industrial machine. if i had known about the janome 1600P, i would of gotten that one.