@mannka,
IMHO, you should find a way that's independent of this guy that will allow you to visit your Dad before he passes. This guy and you should be finished. Clearly he doesn't share the values you find important. And you should not ever ask this guy to help you out.
If a bank will make you a loan..or find some other way, you should steer clear of this guy and deal with seeing your dad before he passes and deal with your grief afterward. No easy task.
You're the one that has to make it happen ...if you can. You may have lost your job...but finding the financial reserves for that visit should be your priority even if it means selling something.