Hi!
It's actually a 1-ton piece of marble, but this group is active, and mills and lathes can easily exceed that weight; so I should get some solid advice here.
I've outlined several ideas in mind, in order of which I might try first. Go ahead and say what you'd do without reading the below, if you don't have time; if you do, please read and comment/critique before I injure myself!
A friend has a diesel truck that may or may not hold 3000# in the bed, and definitely can tow a trailer; the ones uhaul rents for $25/ day can take 1650# (maybe home depot has some heavier duty ones?) I am to take as much marble back from the quarry in one trip as I can; it's a long ways away, and the marble they are giving me for free, it is scrap to them and they know I am a college student.
Plan A is to borrow the truck, rent the trailer, and on the way out purchase a 2nd-hand forklift I have lined up (craigslist ad). It can lift
3000#, weights nearly 1000 itself, has 4 3"diameter wheels. Arrive at the quarry, lay down plywood because it'll be muddy and snowy there, unload the lift; use a longer and wider version of a crowbar to pry two sides of the 1500# hunk of marble up and onto 2x4s, slip the forklift under the raised block, turn it and back along the plywood to the truck. Hopefully, be able to manually push the block deeper into the truck? Maybe with rollers, if we can get them under? But we can't stand up in the bed, there's a cap over it. My friend thinks that there isn't a spot to bolt a come-along either, there's a fuel tank at the front of the bed. Then load up a few rather smaller (150-500#) blocks, load some into the trailer, and tip the forklift into the trailer too.Plan B don't buy the forklift; instead pay the quarry to load up the truck so that we can take another 1000# back. Awkwardly use scissor platform back at the workshop, saving money but maybe increasing headache-- the scissor lift doesn't go to the full height of the truck bed, and we'd have to slide the stone more. Campus facilities has forklifts, real motorized ones, across the street-- but it's a crapshoot whether they'll help a student for free or charge the $75 base rate for a job. Even after I get the blocks back, I'll need to shuffle them around workbenches as I work on one or another (carving).
Plan C Count on being able to remove the bed's cap, or, rent a home depot truck for $200 for the necessary hours; and build myself a small gantry crane? Borrowing the hoist from a different friend, purchasing the I-beams and pneumatic tires, and welding something up. This might work better on the muddy, gravely, non-level quarry ground? I've never moved so much weight, so I'm scared that maybe 3000#, on plywood on loose gravel on open, non-level mud at the quarry will prove impossible to push or control with two guys. It's not a paved and polished warehouse floor. This is why I'm considering building a gantry crane
Plan D Some kind of ramp, winch, and roller system (renting a HD truck to take the winch)? How to support the ramp?
thanks!!
-Bernard