I have an Arcan CEH-41 foldable crane 4000 pound unit I bought at the turkey rod run about 25 years ago. I use it many times every day, at work. I replace anywhere from 1 to 3 engines a day.
I've replaced the rams about 4 times, just get the 8 ton ram. Last one I bought is air operated so it's a real pleasure compared to having to pump that thing.
Those import cranes like you have are fine for small engines like what you work on. But not enough crane to lift a big block V8 and transmission in our old muscle cars. IMO Plus too many places for it(import) to wear out and become unsafe.
I have HF 1/4 mile from the house, only go in there every couple years to buy gloves like said above! lol
