Edit: I have checked today and there are pretty cheap boards for STM32F030F. May be I have entered a wrong chip name when searched that before.
So I have bought five STM32F030, DIP20 adapter PCB, soldered and put everything on a breadboard.
Here is the resulting setup:
The chip runs on 8MHz internal clock (HSI) which is more than enough for me.
The cable connection is SWD to cheap ST-link V2 found also on ebay.
Here is schematics:
Note that BOOT0 is pulled down to boot from flash memory bypassing STM32 bootloader.
The debug connector matches the ST-Link connector.
Overall - cheap, simple and does pretty good work!