Is it possible to have the PCMCIA socket working under kickstart 1.3 on an Amiga 600.....either through a stock kickstart 1.3, custom burnt kickstart...or perhaps by having pcmcia.device (or whatever it is) loaded from floppy/hard drive on boot up?
Anybody done it or can advice how? 
It would have to be in rom. I don't know what files would be required, but carddisk.device, card.resource and carddisk.resource are three. Even if you got the required files and created a custom rom, there's a chance that those required files will have dependencies on certain libs/resources from Kickstart 2 (A600 37.300 rom). You can always try it. I'd be interested to know if you get it working.