I made such mounts by hand - its pretty simple - use a drill to remove the original factory spot welds and remove the brackets completely. Place engine on any supporting base and align it to the car by either using a cheap laser pointer on the hubs or a piece of string if you are void of such prankster laser pointer.
Once you have the engine where you want it i.e. dead straight shot from the hubs to inner axle centre - lift the engine about 3/4 to 1 inch for FWD to take up rubber sag when the engine loads the mounts.
create templates of the load bearing mounts with white cardboard sheet and glue, treat it as if you are making an original prototype. Once you are done making them - take apart the fab sheets - head to a metal fab shop and ask them to replicate your sheets. Come back to the car tack weld the pieces and test fit - once you are sure its correct, finish the items with correct flowing welds not pakora poop welds - To mount these to the car you would need to drill through the chassis legs and insert a spacer (aka bogli in Karachi) and use high tension bolts, star washers and nuts to fit this piece.
The torque limiting mounts are made when the engine is sitting naturally on its loading mounts. Very easy to make. with similar approach.
redoing the wiring when the engine is living in the engine room and the ECU in the interior and you have to kneel, lie and squat to get stuff done, trust me you will kick yourself for not doing this outside the car.