I live in the USA I bought this from the original owner it was garage kept it's whole life. Absolutely no floor rust or fender rust, has a small 2 inch spot on the bottom rocker. This thing is sweet. Question is what is it worth??

First of all, looks like you scored a good specimen, rust free, perfectly paintable. It is manual excelnt. About price, two things.
one*
There is a price list which tells about prices of older cars in several conditions, pristine, good, , moving and bad.
Second*
If you like Datsun cars, then, do not worry about the price, appreciate what you have and enjoy it. You can turn your B210 into a stock car, a street road racy daily driver,a pro racer(road or rallye/off road),it is up to your particular tastes.
I hope you like Datsun cars, if buying it for business(buy/sell) without any Datsun interest, I would recomend you selling it to a Datsun fan and look for more commercial vehicles(plastic hondas and the like)
Later.

I had a 197* something 240z I never had any other Datsun car. I was planning on keeping this initially when I bought it. But I hate too keep it to tell you the truth. I love old cars and I always wanted a Datsun 510 or another 240Z. Now I get this beautiful B210 and I guess I want to sell it to get another classic Datsun. I am so undecided. But I have no garage to keep it like the previous owner and I would hate to see it get rusty. I've only owned it for a week. Was just curious what people sell these for. Mine is in exceptional condition.

Keep it for a month, then decide if you want to sell it, I also was looking for a 510 but I fell in love with the B210 I picked up and am going to stick with it for a while. Mine is also a 76, but the fastback model.

Your wallet will like this car too.

$1200. The B210 is too new to be a "Classic" yet (which traditionally starts at 30 years).

I just saw this car on ebay...here

Yep that's mine, I decided to sell it, I live in a heavy populted latino community and they love these things. Honestly we also have a very very high stolen car rate 1700 a year and our population is about 100,000 so I think I will sell it before I press my luck too far,