These are forward Controls to rearsets on a 2007 1200 Custom while keeping the parts as OEM as possible.
This conversion doesn't damage the forward controls, they can be reinstalled when required.

Converting the pillion foot peg mounts:

The pillion peg mounting lugs were cut off which left a flat, round surface.
Two round steel spacers (1-3/8” Dia, 5/8” thick with a 7/8” hole through the center) were made on a lathe.
Weld one spacer to the outside of the brake side mount and the other to the inside of the gear side mount.
(this gets the foot peg spacing correct, equal distance on each side)
Make sure to center the spacers correctly.
Once welded, drill out the remainder of the mount with a 7/8“ drill bit.

The shift lever from a set of mid controls were used on the gearbox output shaft to get the shift rod high enough to clear the primary case.
However you could use the selector lever that comes standard with the Forward control setup.

Make an 'L' shaped bracket (about 120°) to attach the pushrod (5/16” alloy was used here and shaped round to match the gear lever).
It will have a 7/8” hole at the center of the 'L' to pass the foot peg trough.
(basically you make it the same shape as the inner profile of the gear lever.

Bolt the L bracket to the forward control lever using the hole that was used to mount the forward control pushrod.
The new lever is located by the foot peg shaft and held in place by the old pushrod bolt.
Then all that is left to do is make a new pushrod.
5/16” stainless steel rod ends and a 5/16” stainless steel rod were used here.
These are obtainable from most steel/engineering suppliers.

Gear side controls. 1)

Brake side Controls. 2)