While I may be getting together my good set, I like to have a reliable set for going up to Vanguard. In theory, Skolver seems like the better choice w/ Combuster+Acheron+FF+Blitz Needle, but I'm not set because Vog is a good FSC farming set w/ fire resil. I'm definitely investing in the BTS, so I just wish to know which is more effective. Before my hiatus I used Chaos, so I'd like to try the famous Wolver line. But Snarbolax only offers Shadow, and is difficult to get, so screw that.
Also, I'd consider a mixed set, which seems to be very effective, but what shield and 4 weapons to use wit hit?
In general your plan sounds good. You might want to read the armor section of my detailed sword guide.
Vog Cub and Skolver are both good armors. Vog Cub's protections are more valuable. So if you're avoiding Chaos to have some decent defense, then Vog Cub is a natural choice.
I don't understand what you mean when you say Snarbolax "only offers shadow". That's like saying Vog Cub only offers elemental. But anyway it is hard to get, yes.
You could mix Vog Cub with Chaos, Shadowsun, Perfect Mask of Seerus, etc. If you have 70 Ancient Pages lying around, then you can get the 3-star Black Kat helmet. Also consider Swiftstrike Buckler.