1984 Seat Conversion

[no52]

I want to convert my 1984 Fleetside Bench Seat to a "full Width" 40/20/40 seat.
In order to utilize the entire width of the cab the best conversion seat, that I found, would be from a 2000-2009 F250 Lariat front seat with integrated seat belts.

My question is has any one done this conversion (?)...and in particular, the mounting brackets (?).

I do have a welder and can fab up brackets that will be needed...."thank you" for any ADVICE & HELP that you pass along.....