Its not just fabbing it up its getting all the roll centers and other stuff correct. If you didnt care much for all that, mounting it all up wouldnt be that bad if you could weld, id just buy the rear subframe frame any ae92/101/111 that might need narrowing to align with the eps rear chassis rails then wang that together with the car, that then gives you your hubs and 6 arms mounted to your car. The arms can either be made adjustable (2 are stock for rear tow) or shortened/lengthened to suit then a bush made up to fit in the eps swing arm mount for the trailing rod. Then just a case of cutting the top mounts out and welding rolla ones in. At the right height obviously. Then just brake lines and handbrake cables. Easy peasy 😂