Would be easy enough to build.
I made a pair of forks for my three point,2x2 1/8" wall tubing and carries 600 lbs. so depending on what you want to lift will determine the material strength/size.
The dreaded question.... Have you searched this site yet?
Seem to recall several threads on this topic already but I could be wrong. If you searched... KUDOS for doing that.
If not give it search in here; go thru the any resulting helpful thread info, then fire away questions that leaves you with. Post the questions in those threads if that's where it fits best. Looking forward to follow up.