I got his reply now and this is what I learned:
- The woofers are to be wired parallell.
- I need to drill the holes in the tweeter a bit bigger to make the bolts go through.
- The cable shoes are to be squeezed around the cable, not soldered.
- The thick cable is also meant to be used between filter and binding posts.
I haven't got enough time to work any more today, but I guess I'll continue tomorrow getting the cables right.