RogerD.... Faced with a need for cheap quick dry storage, I punted on a polytunnel. OK, I know I'm supporting the Chinese economy, but a 3m X 2m version (for around £60) 2 years ago has proved pretty good. Great as a woodstore for our log burner, it now has a pallet wood floor, keeps out the rain and has proved a good solution. SWMBO reckoned I had too many sheds.....
As for your purchase, all the hard work has been done, and with the exception of a missing oil tank you have all the major bits to make this amalgam a runner.
Swarfy Cheapskate.