I was able to order individual o-rings from theoringstore.com and fit all the o-rings as follows
needle jet - 1.5mm x 5mm
main jet - 1.2mm x 3.5mm
bowl drain screw - 2mm x 4mm
float bowl - 2mm x 68mm (really needs 68.5mm though)
fuel feed tee - 2mm x 7mm hope this helps