It's good to see all this satisfaction with Timmins. I've already noted that I'm a happy customer from way back (I think I was the first to use his kit for a swap on the west coast).
One thing Patrick did solve is the issue of oil pressure readings doubled when the 964/993 pressure sender is paired with the earlier gauges. The older senders have 10-184 ohms of resistance cover a range of 0-150 psi, while the newer senders spread the same 10-184 ohms over 0-75 psi. Patrick found an adapter that will let you screw an older 0-150 psi sender (M10) into the newer engines' M18 hole.
I mention it because there are a cluster of 3.6 swappers here.
VDO probably makes a 10-184 ohm gauge over 0-150 psi with an M18 fitting -- maybe one of you found it?