Wurzel, give me a call if you like. I can coach you through the process if you want to do it yourself. (BTW $100 if you want me to do it for you) and if your not happy with the job its free!
If you feel like a drive to Kyneton (55 mins from Melb CBD) i`ll do what ever is needed to have them looking good and clearing everything. Im a Panel beater and have done heaps of guards. But quality comes at a price!! $50 a side.
I went down the road of very long primaries (1.5" x 28") baffle collectors then short secondaries (1.75" x 12") then a merge collector to a 2" diam. tailpipe.
Info for these dimensions is from "Four Stroke Perormance Tuning" by A Graham Bell.
These pipes perform like 4 into 1`s but with more midrange.
Cost only $280 in 316 stainless mandrel bends and tube. but about 30 hours of work!
A15, 271deg cam, hi comp, 500mm intake runners and injected.