Hey Jeff, I have a point to make with you. Remember, someday there's going to be an engine and tranny sitting right there beneath your solenoid. Believe it or not, these items do fail from time to time. How the heck are you ever going to get that puppy off and back on?
I mounted my solenoid on the upper firewall, where it is accessible. Don't forget, once the body is on the car, the upper firewall is set WAY BACK and the solenoid is hardly noticable and certainly not "out of place". Just my 2 cents.