Those one barrel carbs are very simple. Get a good quality rebuild kit and do it yourself. If necessary, take notes as you disassemble and follow the instructions that come with the kit.
You can get a small one gallon can of part cleaner solution complete with an enclosed parts tray for little money. Most part stores carry them.
FYI, National Parts Depot in Ocala sells new reproduction one barrels for your six if you find that you need it. I'd give the rebuild a try, those carbs are really simple and you'll gain some experience and a sense of accomplishment. You won't need any special tools, just basic hand tools.
If you don't have an air compressor to blow out the passages, a can of carb cleaner has enough pressure to blow the passages out and it will evaporate on its own if any remains in the passages. | 
I ordered the following today 
