Yes to all of that. 34:19 has you well covered
Air cooled engines are designed for a MUCH broader operating temperature range. Most of your concern is unneeded, It hasn't even been that hot in PHX (yet
) If you are still concerned, you can use ECMDroid with a bluetooth dongle ($40-ish from Buelltooth.com) and wirelessly transmit "live data" (like gauges) to your Android phone on a handlebar mount. That includes temp from the head and a vast amount of other parameters.
Otherwise, just ride it. She will tell you when she's too hot by first pulling timing (weak on power), lowering redline, even killing one cylinder, and then shutting down.
315* (IIRC stock) is where the ECM starts to pull timing because of the heat and not even in one cylinder 'parade mode' yet. Try THAT with your Kia!