@foob I'd be happy to setup a CF for you to use internally, I can supply (at cost inc the IDE adapter) or you can send me yours. If you send the CF filled with the ADF's you want I will save them before I wipe the CF and put them back on after installing Workbench.
You can get the 37.300 Rom on eBay:
http://www.ebay.co.uk/itm/amiga-600-...item484e629cbf
Or even a 3.1Rom for not much more: (better for larger CF's like 4gb but might be less compatible with Games)
http://www.ebay.co.uk/itm/Amiga-600-...item4ac03629af
The latter looks like a burned EEPROM though, it's not a problem, it's just not 100% legitimate
(Unless this seller is licensed by the Copyright holder but I doubt it!)
Trust me, you'll enjoy your A600 a lot more with internal storage and you can then stop pulling your hair out