great advice Greg, going the used way is really good for people just getting into the business.
I checked the website and it looks really good on paper. However I am concerned about its actual performance and the fact that it might cost more ink-wise.A printer you should be looking at closely is AnaJet. I have one, and I love it. It has everything, including a good price.
Mine cost $14,600 and it prints on white and black T Shirts. Wash tests have been excellent. You can see it at AnaJet: Direct to Garment Digital Apparel Printer. The ink refill is by catridge, and the machine is portable weighing only 72 lbs.
Mark: I'm not sure what you are basing your data on but our system that incorporates these print engines are as follows:The printhead in the 4800 is larger, but the drop size in the R1800 is bigger. So, more ink can be dropped by the R1800 than the 4800.