"If it were up to me, PASS ON THE LOAN. If you like this species then save up and breed it. There is a greater chance you will fail if you feel you MUST produce so you can pay him back."
I'm certainly not trying to discourage your excitement....put a 20K loan put's a lot of pressure on you to produce. It makes all the fun.....get real yucky if things don't go your way.
Ball Pythons are unpredictable and many times reality has looked very different then my forecasting. Some animals chose not to eat....not to breed. If your banking 20k on 1 boy breeding for you (and he doesn't).....you could potnetially really piss off an investor.
I'm not saying absolutely do not do this. However, you may want more realistic about your goals. I think a 1 year pay back is way to aggressive. I would go with a 3 year pay back....and then if you can do it sooner....great. I would definitely diversify as indicated above....develop a strong base rather then relying on one major male morph. Get your females before you get your males.....they are the key....their size and maturity are always the restricting factor.
I would also make sure you really (clearly) understand the expectations of your investor. Paint a worse case scenario.....and how you will handle it. Are you taking all the risk and no matter what happens you owe him 20K.....or will he share in the risk.
Just a few thoughts.....goood luck with your decision.
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Jim Perron
Python Passion Reptiles
pythonpassion@hotmail.com
www.pythonpassionreptiles.com