Spitfire,

I don't give suggestions for free. But for this time i spent my time free for you. Do one thing, just go for university job. Don't think about future that way,who knows what happen in the future. Remember AdamSmith's Golden Rule "In the long run We all die".

Having h1 with non profit organizations mean you are already approved for h1b visa. They can file your h1 at any time and you will instantly approved.  What you need more than that. but if you file through the normal quota(profit -h1) you have to go through the lottery system. There are so many people who have job but no h1 and vice versa. Plus you will make a really good money. I wish either me or so many friends in sajha in such  condition. We even don't have a single choice, and you have opportunities knocking on your door right way.

Regarding your 2 questions no.  1 and no. 2  i don't have any answer as i already told you not to think about it.

3.

If you get fired you can't use your h1 visa as no job means no h1. I don't think you can use your OPT either cause it would collapse when you're approved from h1. don't know exactly though. Do some googling too.

And why are you being afraid of getting fired? if your university is offering you a job, that means they saw something in you. Stop being worry about getting fired.

Bottom Line. : Go for your University job. if you don't, u will be the most idiot person of this world.

All the best.