Hi,
Welcome to Beastmen.
The Beastlord is squishy and it appears you want him to act as your BSB but if I'm not mistaken he should be your general, no? He can't be both and if he's your general then he's way too squishy. Come to think of it, if he's your BSB he's too squishy too!
You might want to flip your characters around a little. Get yourself a lvl 4 Bray and a wargor to be your BSB. Don't forget to give him the armor upgrade from the gifts - no magic items though since he will have a magic banner.
I assume ad for the gors is additional hand weapon? If so yes, that's the only way to run them.
Tusk chariots aren't so great, imo.
Bestigors on the other hand, are. You could drop the chariots and up your Bestigor count, run them in horde and all that jazz.
The Ghorgon can be left behind, use the points for another caster - perhaps a lvl1 for the fun of it. Or maybe some piggies, if you're worried about flanks/chaff piggies are great.
Just some general ideas really, didn't get too specific.