Our g28's use the internal latches because of how the doors are. But autopro you will have an oem door so I'm guessing you will need the diablo style latches.g28 latches are 126, striker has the guide formed on themhttp://www.ebay.com/itm/MERCEDES-126-DOOR-STRIKER-500SEC-560SEC-500SEL-COUPE-/300196687542?pt=Motors_Car_Truck_Parts_Accessories&hash=item45e51deeb6&vxp=mtr(not for watson body or diablo)murcie-me has told us to use these latches
I will be using a set on my G28 from a 450SL otherwise known as 107. Depending on how much work you want to put into them, you can mount them on the inside of the door or make an internal frame / plate and cut away the section of door which will expose them more like an OEM door (see the replica and OEM pictures below).Chris
There are many that look similar but the one you want has a lever that you push down on from the top.Notice in the pics below the early Diablos had the latches mounted with the striker cut out outboard. The Roadsters, 6.0 and Murcielago had then mounted inboard.