Kevin, I have spent many winters mining in Q. Here is some truth.
Camping is allowed in the BLM South of the freeway and west of town. Flatfoot claim would fall in this area. There is gold here. The Q metal detector club also has claims west of flatfoot as well as a great claim at Middle Park. Dues are very reasonable, see the local gold supply shop for membership.
Your jeep might not be a benefit. Roads and trails have been closed and the Leos are really busy. I am afraid you will be disappointed as the areas around Q will be hard hit and roads well traveled. There are areas E of the Colorado River, S of the freeway where you might find areas not hard hit with your ride. (Camping allowed as well) This would be S of Blythe, CA.
Good luck finding that multi pounder.....