I got as much from your prior postings.You need to drill out the rivets holding the basket together to remove the backingplate and access the springs. Then drill out the holes where the rivets sat. i drilled out and fitted v-coil m10x1 thread inserts. There are people who say to drill and tap m8x1,25 directly in the existing holes, do NOT fall for that one, the diameter of the conical hole in the bigger end is larger than an m8x1,25mm bolt diameter is. A man in spain drilled to 10mm diamter and made steel insert from the inside that are glued, they are then threaded m6x1.
Bolts need to be either 10.9 or 12.9 quality.
You need 18 new bolts for the engine cover. a new gasket for the same,
You need 4 new springs.
Drill out the existing backplating, and re-tap with m10x1 inserts and install with 10.9 or 12.9 quality v-coil inserts.
The springs you used, you mentioned going for hard and soft springs. What's your source? I think I saw the website mr. Spain used, but I can't find it again. Anything stateside?