[nicfit]

If you don't need multitracking you could try some of those handheld recorders (edirl r-09 h or some zoom h4) much depends on which kind of instruments you'll have to record, the size of the room, amplification of instrument/voices, "where" the recorded stuff is supposed to end up, the actual recording quality you need.....
Lotta ins.
Lotta outs.

p.s. took me too long to write and hevusa basically said what I meant in a more concise way.