New England Airgun has tanks and compressors in stock, if the store is allowed to open soon. Most people who use a tank in our area have them filled there.
I would also add the FX bobcat is a nice bullpup. It is probably heavier than some other guns, but if you want a gun which is easy to shoot at the bench, and at the same time have a short lenght, it can be an option. Especially if you can find one used, for sale.
Edit: Saw you already have decided. Have never tried one of those eastern european guns, but from what I read on the forums, they seems to have many satisfied customers, so probably a good choice