40hp 95 johnson model # j40rle0d....looking to install an electric start since the rewind starter is starting to go south...starter mounts allready on the motor & cant find any solenoid mounts...ordered a used starter for now 0585056 & a new solenoid 0586180...what capacity push button will I need & what gauge wire should I run through it, I know I need 2 or 4 gauge for batt leads but not sure about the smaller solenoid leads