I'm baffled as to why it is sitting on the wooden blocks...and how it is going to come off those blocks later...
First half of the question is easy. The welded tube steel crate that the tank was shipped in has cross members on all sides of the tank, including the bottom and will need to be cut away with an angle grinder. I didn't have time to do that as it was being delivered, and even if I dd, there is no way to lift the tank without supporting it from the bottom... there was always going to be something that needed to come out from under the tank.
The second half is a bit more of a challenge, but I belive with a car jack and some creativity, I should be able to manage.