RPN Scientific Firmware for the Spikenzielabs Calculator Kit

[Dave Britten]

I've got one of these kits arriving in the mail later today. Was hoping I could just socket the ATmega, but looks like there isn't enough room to do that, based on the photo. Where can I obtain the necessary right-angle six-pin header for adding I/O pins? I'm not an electronics guy, so I'd be lost digging around Digikey trying to find the right part. I'm sure I could find other neat accessories to add to the order to make the shipping cost-effective, though.