The only wide format plotter I know of under $2,000 would be a low spec HP Designjet. Staples carries a couple of models under $2,000. I don't have any personal experience with one. All the plotters I have ever used cost tens of thousands. I suppose you may be able to find a used Xerox on the internet cheaply now that they are out of the wide format business.
Out of the box suggestion: its a good opportunity go digital, either through DWG TrueView, Design Review/A360, or PDF. Only print full size hardcopy when its an absolute must ie. wet-ink signatures to be delivered to the client or regulatory agency.
Sending that amount out for printing is piddling small change compared to the purchase and maintenance cost of a decent full size plotter. Most print shops will give a discount for regular business. We do substantially more full size printing than that and still struggle to justify the ongoing cost.