Small tractor and limestone job in BR

A lawn care company with a toro dingo could probably handle that job.

Is it fairly level to begin with?

Just need the rocks spread? A good truck driver can lay down limestone good enough that a rake is all that is needed to finish it.

Bobcat with tracks could make quick work of it. Those little dingos have tracks also

Rent small trsctor /dingo and have a small dump truck load of limestone delivered and do it yourself. I did a pad just like this for my boat port which is 550 sq ft. Took 9 yds of rock. All I used was shovel, rake, and wheel barrow, and a good days work.

Rent a dingo with tracks