dig a trench for landscape electric line burial

Tampa FL

Description

I need to run a low-volt electric line to trees for lighting. Approximately 225-250 feet. The depth needs to be 8-12 inches. There will be tree roots, and a run under a sidewalk. Need to do this work sometime between the 12th and 16th of DEC. I need someone with experience who knows how to get this done with minimal damage to tree roots (though some may be unavoidable)