With you on the do it yourself. For the bed I took a 4x4 post and two 2 x4s and wide as the underside of the top rail, and four 2 foot long 2x4s. Nailed it together like this...

Front of Bed
|--------|
.......|
.......| Hook lift here
.......|
|--------|
Tailgate
Then lifted it off with a chain fall

(ignore the dots, text wont show leading spaces )