Folding or flexible curb stop wrench source

I have some curb stops located under homes. That only leaves 18" of clearance. Telescoping wrenches are 4’ to 6’ so they can’t be used under a home. Has anyone come across a folding or bendable curb stop wrench that works well under a home?

I’ve heard the $350 flexible one in Blue Book doesn’t work well. Has anyone tried it?

Anyone found one suited for use under a home?