Tesla

I would say it's always better to register on time because you have more possibilites to build a stack. Sometimes you can late reg but I wouldn't do it if you start with less then 50bb's or so.

Of course the structure of the tournament is important. If you buy in to a tournament that's a turbo variant and you start with 40bb's, you'll get way less chances to improve your stack and it is possible that you'll bleed down to let's say 10bb's without even getting a hand.

I'd always advice to buy in on time because of the above reason.

With that range and 5k left I would say call, but correct me if I'm wrong.

This is a definite shove imo.

Understand your feeling that we're never good here against a good player, but I can't really see myself folding here.

First a question, what do you think his range is?

Agree to a preflop jam...

With those bounty's in mind and their ranges I guess a rejam isn't that bad.