I am in US and here, we seem to have an endless supply of Omega D-II and D-2 in varying degree of completeness available. I actually have two - one is complete, the other one being rebuilt. These are big, heavy, and nearly 50 years old. They are pretty cheap, too. I can find them anywhere from free to $50 or so complete with lens and negative carriers. That's what I would recommend.

If you can find a good one without damage, they can be cleaned up and put back in service. It will do 35mm, 120, and 4x5. A key here is to make sure you have all the right condenser unit and to get ones with good bellows.

One caution is that they are quite large and heavy. If you can't have a semi-permanent setup and have to move them every time, it will tire you quickly.