Hot Wire H/AC Blower motor? 86 300SDL Turbo

Well I HAD my blower working.
Don't know why but it up and quit after a couple of days.
I ran 12v to the motor and it works.
I suspect that the Resistor is bad(just a hunch any one know how to check it?)
Would I do damage to anything if I were to bypass the resistor and run wires from the plug (leading into the resistor) to the fan motor?
Or should I put in a toggle switch and run a lead from a hot source?
I realize that it would be on "full" mode when on.
The $400.00 on a resister would be better spent on more important things right now.
Thanks

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