Check around locally at oil companies, hardware stores, ranch supply stores, salvage yards or on craiglist.com for used drums

Worm drive hand winch

with cable

(Check for sales) Harbor Freight $36.99

Galvanized Steel Nipple

1-1/4 in. x 12 in.

Amazon $8.20

Galvanized Steel Nipple

1-1/4 in. x 24 in.

Amazon $8.20

Galvanized Steel Nipple

1-1/2 in. x 12 in.

Amazon $11.50

2 60# bags for 11" tall

1 60# bag for 6" tall

Get locally at hardware or building supply  about $5 / bag

1.5" wide X 1/8" thick steel strap

2 feet

Amazon $16

Galvanized Steel Nipple

2 ea 1/2 in. x 2.5 in.

1 ea 1/2  in. x 5 in.

Amazon $11.50

2 ea 1/4 X 20 X3" hex head bolt with lock nut

4 ea 1/4-20 X 3" expansion anchors w/ nuts

1 ea 1" screw eye

1 ea lag shield anchor

1.5" wide X 1/8" thick steel strap

2 feet

Amazon $16

Galvanized Steel Nipple

2 ea 1/2 in. x 2.5 in.

1 ea 1/2  in. x 5 in.

Amazon $11.50

2 ea 1/4 X 20 X3" hex head bolts with lock nut

4 ea 1/4-20 X 3" expansion anchors w/ nuts

1 ea 1" screw eye

1 ea lag shield anchor

1 ea 5/16 X 3" hex head bolt

1 ea 3/16 cable ferrule

Quick release pins

either 1/4 or 3/8 dia.

2 pack: Amazon $5.03

Casters

4 needed

4 pack, 4 in: Amazon $17.72

4 pack, 5 in: Amazon $27.97

2 inch hole saw

for metal

Amazon $6.29

Heavy duty cable cutter

Amazon $7.99