Dennis, what you surmise is easily doable but care must be taken to test the connections in that area after removal of the emergency cut off valve. Use a solution (very diluted) of dawn dish detergent and water on a pressurized system to check for leaks. If there is a leak it will bubble up. Do not use any kind of thread tape or dope on flare fittings but a must on pipe thread fittings. Be sure the tape or dope is rated for LP fuel. Once you have it removed and no leaks are in the system, you can use a regular LP leak detector that only warns of a leak but does not shut down the system.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7