Electric fan install help.

http://www.summitracing.com/parts/atm-2385?seid=srese1&gclid=CPOo45mOj8oCFYQXHwodTIINWg

That sender will work. Dakota Digital also sells some. You can also theoretically make a custom calibration but that would be hard with the stock gauges.

These are the options:
Display Option
No No gauge, dedicated Dakota Digital sender only
DD1 Dakota Digital individual temp gauge with sender
DD2 Dakota Digital instrument cluster with control box (ver. STR-D or later, older versions use CUS)
STE Stewart Warner gauge and sender
CLS Classic gauge and sender
VDO VDO gauge and sender
ATO Autometer gauge and sender
BUS Dakota Digital BIM connection
CUS Custom calibrated gauge
CAL Custom calibration (for gauge sets not listed above)

My fan was a junkyard one and I had a diode/resistor pack. The dorman one shows the diode/resistor pack in the picture though. If not, they are available separately for about $30.