I take it you all ready have a washer? Than you have a 2" drain. Is it black plastic,(ABS), white plastic,(PVC), or iron? Is the laundry room drywalled? Is your house plumbing cvpc,(plastic)? if it is you can easily do this yourself. If it is copper, and you don't already own a torch, and all of the accessories, AND you don't know how to use one, call a plumber.
OR do you have a friend with knowledge, tools, and drinks beer? You *can* run the lines on the outside of the wall. I bought the tub/cabinet kit at Lowes for about $240, it included everything, but the shut off valves.