Pricing from a decade a go is probably not going to be valid. It's all going to be based on your cost and overhead. So the first thing I would look at doing is seeing what your nearest long term competitors are charging and see if you can at least match it. Don't do come in and say well they can wrap a vehicle or do a sign for $4,000.00 so I'll do it for $2,000 and take all the customers. This is only going to bit you in the ass down the road, we had a company do that, they lasted 18 months.
Also what we charge is going to be different that what you will be able to charge, there aren't really any 'standard' pricing that I know of as everyone has different focus, set ups, and overhead. Look at what it's going to cost to buy the material, buy and run the equipment (printer, laminator, plotter, computers, tools), what does your rent cost, utilities, marketing, etc... Most of these should be a relatively hard cost so you will know how much you will need make each month to pay the bills. Learn to estimate, not just material but also time. So not only is the job going to take X amount of material but also X amount of time.
Also don't forget to pay yourself. So that job you thought that you could do for $1,000 just became $1,500.
On a different note, this is something that you should have figured out before getting into the industry. Run the numbers, do the math twice, check the market to see if there is even a demand for another shop. As far as equipment, don't get what's cheapest but what going to be the best for you and what you want to focus on. If you want to focus on vehicle wraps and look at a latex printer, if you want to focus on specialty cut graphics maybe look at Gerber, etc.. Do your own research, take the time to do it right.