Rimlocks???

I have searched here and no references noted. Who had rimlocks put on? I expect like many to ride this thing thru sand,water mud, camel dung whatever. Some sand could be extensive and lowering pressure may be advisable. Any comments ,heck even statements of undisputable fact are welcome..

Have a lightweight one in the front, but rear is too wide for any rim locks I could find.

Motion Pro 1.85 LiteLoc rim lock in front, Dominus 2.50-3.00 rim lock in the rear.