I have used the Hamilton 5500k bulbs with Pc actinics in the past with great results and growth. I don't know of other 5500k bulbs but the Hamilton's looked nice with a little actinic.
I ordered an Oceanic bow front canopy for my All Glass 72 bf and it fit perfectly. The canopy is not wood but ABS. Matched nicely and I was able to retrofit a MH/PC fixture and two fans without any problems.(I drilled through the plastic) I ordered it from my LFS and it costs me around 80.00...