If you can not learn to dowse using my methods a LRL is going to be of no use for your project.
Send me a map of the area as I am sure I can get you closer that 90,000 square feet. aarthrj@aol.com
See if you can find a place to borrow a two box detector…Water Companies, fire departments and the military are good sources. I don’t want any one to dig a 6 foot deep hole unless they are sure the treasure is there. …Art