I did a 2.7 conversion for a friend with VEMS ECU using 315 cc Bosch injectors and Bosch 3x2 coil-pack, ITB's from GSXR750 (these already have TPS and injector mounts), custom fuel rail from Aeromotive profile. Total cost of parts was ~1500 euros and labour cost (fabricating fuel rails, installing parts, making harness and tuning) was 1000 euros. I have to dig in my laptop for photos.
But here's VEMS v3.6 PnP on 964, it plugs directly onto stock connector. I installed two Bosch 3x2 coil-packs and 993 fuel injectors (a bit bigger than 964 ones).
PnP VEMS costs ~850 euros, coil-packs were ~100 euros each. This setup made 172 rwKW vs 151 rwKW with stock Motronic.
If you go with generic VEMS (not PnP) for non-EFI 911, VEMS ECU costs ~600 euros with connectors, cost of the wiring harness depends on the guy whom you will have it made but in my case it costs around 200-300 euros.
I agree with the labour cost vs own time. My time isn't nearly as costly as it would be in some hotrod shop so I pay with my brains not wallet. It comes down to personal preference, experience, willing to spend time on the car etc. Always a compromise but I don't think that a person is serious about going EFI if he/she complains about 10000+ cost and does not look for other options which are not any lesser in capabilities or performance.
Al, nice project I have read you thread before. Triumph TB's seem very nice.