Acrylic is best cut with a laser. Routers can do it to some extent, but the results aren't as good. Since you don't have the budget for a laser cutter or a decent router either, I'd say send out the work until you've saved up some more - if you really think you can save significant money by bringing this in-house. There are plenty of shops with lasers looking for business, and you might be surprised by how inexpensive it is to use them.