There shouldn't be any problems borrowing an incubator. Clean it out really well and wipe all the surfaces with a 10% bleach solution and let them air dry.
My recommendation is to do a test hatch on cheap eggs before you spend a lot of money on more expensive breeds. Regulating some incubators can be a bit tricky. Be sure to monitor the humidity and temperature several times a day since some models fluctuate when you first get them set up (or change anything like throwing out the clears after you candle).
My recommendation is to do a test hatch on cheap eggs before you spend a lot of money on more expensive breeds. Regulating some incubators can be a bit tricky. Be sure to monitor the humidity and temperature several times a day since some models fluctuate when you first get them set up (or change anything like throwing out the clears after you candle).