So, my structs are leaking badly and I am planning on a suspension upgrade. I am hoping to lift the car 1'' - 1.5'' to compensate the ground clearances when traveling around.

I am not a fan of bracket lift so the M7 an JOR kits are ruled out.

Coilovers like Ceika and Flatout don't seem bad but they give way too many adjustment choices for my case and I want to keep things simple without messing with all configurations.......

So the best choice for me seem to be BC structs with Lifted Spring. H&R doesn't have their lifted spring for R60/R61, so I am considering finding springs that are compatible with R60/R61 from other cars.

Does anybody know the spec of OEM springs?

Also, since I am upgrading suspension, what bushings or bars can I swap along the way to avoid repeated work in the future?

Cheers