We looked into buying one earlier this year but opted for a
DTG printer.
It was our experience that the price is the same across the board. Free goodies are what makes the difference. I would think a start up package is probably standard among dealers. What's in it may be different. I would think inks would be included.
Your biggest concern should be training and service. How far away is the service rep? And who pays for him to come to see you if the printer goes down. Dealer reputation is important also. The dealer will be the one to handle your problems not Roland.
Check to see if there are any demo models for sale too.
The printer comes with RIP software so you can design and print from the usual design programs and send it to the RIP and away you go.
And don't forget you'll need a laminator if your prints are going on a vehicle or outdoors for any length of time.