I have cleaned clutch and sidestand switches many times with major wd40 douching... always worked.
Sidestand usually has a sticky rod actuator, slip the red snooter tube under the rubber boot, or poke a hole in the boot to accomplish the same, and spray away..
Also diassembled ad scrubbed starter button wkith exceptional success.
$243 for that seems a bit high....
Fyi, if you suspect a bad clutch switch, simply pull the wires, bend the tangs on a crimpon spade lug 90* to emulate a "plug" and use it as a jumper to connect the 2 poles in the harness socket. The circuit will then work all the time, you have defeated the switch.