Bosch VE seal kit is ~$16 (no bushings), I got off ebay, from Fuel injection specialties, or name something similar, I bought several sets But I haven't installed yet, as only have had one leaker (cold start - ez fix)
last nozzles I bought were ~$8. USD (Bosch, nozzle only) rebuilt injectors are $28 USD exchange
I usually get parts here Halsey import Portland OR