you have the disadvantage of being too old,and modelling takes preparations in terms of learning to walk,pose,getting an agency,a portfolio-so if I were you,i'd go for it,but keep your day job if you know what I mean.
I personally am an optimist so I would say go for it. You only live once and you won't look like that forever. I'm also a believer in "if you got it flaunt it". But make sure you don't let it go to your head. If it works out you could make a lot of money. Just be careful...
Yep, go for it. But you will need pictures to show to agencies. modelmayhem.com has phtoographers on there that are willing to give you the photos for your time spent posing for them. So no cost to you.
If anyone tries to make you pay, it's a scam. Agencies make money only when YOU do.