You will get a little fuel out, but there is a check valve in the tank that is suppose to stop the fuel from coming out and that is also the reason you can't get a hose in it to get the fuel out. This is not an easy job to do on the floor, with a lift it is much easier.
The labor to replace at a shop would be about 2 hours and the going rate is about $100.00. So the job for labor would be about $200.00 plus the part. I guess it comes down to whether or not it's worth $200.00 to have somebody do it for you or not?