I have got the cans fitted with my standard system until I get to 600 miles the I will fit the new pipework and have the bike set up and serviced at the same time.
Just used my dremmel with the round sanding wheels to smooth the welds then used a polishing mop in my power drill which was clamped in a workbench, I then used two grades of polishing paste then solvol chrome polish to buff them up, hard work but it really makes them look decent quality now !!!