Ausmith,
First of all, the car looks great. About the oil temp. I would suggest buying a remote oil filter relocater kit with two extra fittings where you can connect your oil temp and pressure senders. It will be the cheapest to do versus taking your oil pan down and having someone weld a fitting for gauge sensor. That's what I did and I would have done it differently if I would have thought about it.

Good luck!

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Richy Gonzalez
#21 ITA CRX