First get two separate machines. If you get a two in one, you still have to laminate, and if your cutting you can't print and vise versa. While all printers have their quarks if your new to this game not sure what your nitch is going to be, go with an entry level latex machine and entry level plotter, many time places will have trade-in programs that you can take advantage of if you get to the point of needing to upgrade.
Unless your looking to do something with white or metallic inks stick with Latex, it's less maintenance, no fumes, no out gassing, quicker turn around time.
What RIP software have you used in the past?
What about a laminator?
To be totally honest what I would do first is to outsource everything and take a chunk off the top. Little to no investment on your part and you can test the waters to see if it's a viable business in your area. There are many merchant members on here that would be able to help you out.