I know everyone is against the hardtail idea but there's a bike almost exactly like what you're wanting to build for sale at the moment.
Nice bike...
My one is a daily ride all year round and most of that 'could' be lane splitting on the motorway (but I would never do that as its illegal), so I need good stopping power and decent suspension as my old back would fail after a few km's on a rigid. Plus the bars, tank and pipes all look chit on that chopper - I hate coffin tanks for some odd reason.
While I like the clean lines of a hardtail (especially in the mounting of the sissy bar) they are as practical as 26" front wheels.
I like the sprung rear end with covers over the shocks; looks old school enough for me and a comfortable ride.