If you’re in a hurry and need some VCO’s quick but don’t want to go the stripboard route you can always etch up your own boards: My first DIY modules - starting a Kosmo format build
That’s a Basic 3340 I did last week. The files for my PCB layout are in my GIT: https://github.com/jhitesma/Modular-Synth-Build/tree/main/cem3340 If you didn’t want to etch your own you could always send the gerbers off to JLCPCB and get 5 made up for $2 then pay for quick shipping. Not sure what the shipping cost is to Germany but for me here in the US it’s like $15 for 2-4 day DHL. express. So <$20 for 5 boards delivered in a few days. They aren’t as full featured as the 1222 but sound the same as long as you don’t need FM/Sync or the built in tuner.