If you can fit a 24" machine, look for a used SCMI Sandya Win. they go for about 4K-5K on the used market and a good machine. You want a drum and a removeable platen. Also check the tracking system and air requirement needed. An electric eye coupled with pneumatic tracking uses less air than strictly pnuematic. Since a WB generally runs a 10 hp motor, you don't want to need a large compressor running at the same time unless you have lots of amps to spare. Dave