Ok, the leap from $1,000 to $2,500 is a big one.  I certainly didn't make it at one time.  It took me years.  But I know folks that decided they wanted to get into woodworking and dropped at least $2,500 getting themselves outfitted.  When you do make the jump, the thought process becomes much less about making sure you can get the job done and becomes more about having quality tools to get the job done.
After years of digging down under router tables, lifting the entire unit up to change bits, and then fighting to get the plate flush again in the table, I chose to spend the money to pur­chase a router table, fence, and lift system. I did a thorough review of these systems, and chose the Canadian made Jessem Rout-R-Lift II kit. The system comes with a solid steel stand, a phenolic table, an adjustable extruded aluminum fence, and their base model lift system. For budget reasons, I did not choose the hefty Mast-R-Lift, but I am quite happy with the lighter Rout-R-Lift II. It will last me a couple of lifetimes, so it is the right system at the right price for me in my one-man shop. Hats off to Jessem for making a great lift at a very rea­sonable price in the middle of a tough economy. The table is durable, and flat. The direct drive lift is smooth and precise. I mated the lift system to a mid-sized model 690 Porter Cable router, which has a fixed speed, and enough power to do any­thing I need. The Jessem system uses a bayonet type mount for the table inserts, a nice touch that makes swapping the table insert quick and simple. As with all my machines, the router table is connected with the supplied dust port to my shop dust collection system with automated switching. 
This is a great project if you carefully consider your needs first. I left out the vise and tracks, but had no problem hand picking good 2x4 stock at the big box stores. I did use maple on the top sides in case I ever decided to add tracks, but it was not a budget buster by any means. The cabinet and drawers were a first for me and a great learning experience. I also added retractable casters so I can easily move the workbench around my shop. Love the workbench!
The big advantage to buying a pre-built camper is that it’s already built out, so you won’t have to wait to hit the road. Many feature innovative ways to convert the living space into a sleeping area, and may even include a bathroom/shower. These vehicles should also have electrical, plumbing, propane, and water systems already installed (although if you want solar power, you’ll likely need to add this yourself). woodworking shop design