The problem with deleting the resistor by jumpering it is that will get you high fan, BUT, the wiring from the pre-resistor relay is not as heavy as the high speed circuit . So , the trick is to use the feed wire to the rsisitor [ single wire side] to a power relay and feed that relays output to the 2 wire side of the relay..that gives you high fan with a/c instead of low fan w/o a problem with the wiring for low fan.......... Fuse that new line w/25 A

If you do not use the low fan for a/c , you can also put a cabin sw jumper at the drier sw to activate it manually from the cabin..that is a popular mod for Benz guys ..great to have a manual over-ride for traffic, towing, etc..and that does not change any stock fan cicriuts, it simply gives you manual command over them. [ like puting the heater on to cure an overheat condition]

You can also lower the high fan circuit if you have the blu 2 wire sensor for high fan by bridging that sensor with a resistor for lower temp cut-in.

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A Dalton