Thanks for all the responses, and a HUGE thank you to TKCR for working with me on spec'ing out a seat. However, I've realized that I'm not quite sure exactly what it is i want in a seat yet. Also a more pressing issue came up with Sweet Pea... fuel problems.. I need to focus my attention on redoing the fuel lines, senders and possibly tank switch. I'll knock around the seat idea for a while... and see what sticks.
However I did come across this on the Squarebody Syndicate FB parts group. Looks original, and re-inspired me to do the plaid...
Untitled by
awesome_adawson, on Flickr