The tire carrier latch/hinge came as a kit from EMS offroad. Kit also had a polyurethane bumper/support and the tire plate. I bought my own steel to build the actual carrier frame. The 2x3 ran about $50. The bumper kit was from JCR. Price depends on options and I got mine on the black friday sale. The round tubing I got from work. And of course lots of welding wire, gas, and then paint supplies. Shackles were about $20 from a logging supply. Probably best to just order them from JCR with the bumper.
EMS currently doesnt have the complete kit I bought, only a hinge/latch kit.
Tire Carrier Hinge and Latch [TC-HL] - $75.00 : EMS Offroad, Custom 4x4 Fabrications
Installing the hinge to the bumper was easy. Just used a hole saw on the completed bumper. Put the shaft through close to the vertical plate of the bumper and was able to weld the length of the shaft to the plate as well as weld both sides of the top. Bottom of the shaft ended up being perfect distance to slip a scrap of 3/16s plate in and weld it to the bottom plate as well.
Used a hole saw to also cut the end of the main 2x3 beam to match the spindle collar. Then welded it solid. The spindle collar is 4" tall so that was perfect distance to set the beam on the poly support and end up with the beam and collar flush at the top.
Also the in-construction pic doesnt show a small triangle brace I welded in later under the 90* support beam.