Stew... I have installed 2 on my own rigs and it is very simple. Uhaul, Chevy, GI Joe's all sell bolt on hitches that shouldn't take you more than 30 minutes to install. More than likely it will take longer to get the lights patched in than to install the hitch. Again most places that sell hitches sell light kits, too.
If you do it yourself you can get by for less than $150 easy (hitch, stinger/ball, lights and lock.. Take it somewhere and it could run you upwards of $250, depending on the shop.

At the very least get a few quotes before you decide.