Claim Equipment Legality Question Options

[swizz]

I'm contemplating a new piece of equipment to move material faster at my claim. The claim is a 20 acre individual placer (unpatented) location claim (on BLM)
This is the type of equipment I am considering: Towable Ride-On Trencher
The one I linked is on sale for $3K... they were recently offering an additional 20% off that for a total of $2400 (+$89 shipping) but now it's backordered (of course)... anyway, something like that (even used) for under $3K would help my operation tremendously and costs about as much as a good banker, dredge, or other typical small-scale production mining equip. I could easily tow this puppy with my Jeep and navigate my 4X4 access road... as well as my mining terrain. I'd love to get a larger scale backhoe but cannot afford that yet and my Jeep is limited on towing capacity. Something this size would suit my needs for now if I could swing it.


My question is: Can I put equip like this into operation at my mine without any further legal protocol (ei undisclosed monetary bond or NOI to BLM or other) if my surface disturbance remains under 1600SF?
Dan and I discussed this a little bit while prospecting a week or so ago and from what I recall of that discussion, I think I'm good-to-go if I pick one up, tow it out there, and start digging. Correct?
If I find one this inexpensive again I just might get it.

Thanks in advance.