Option B
Transpac
Twin 10l 300Bar cylinders (would go for the 12s but too heavy)
7l steel stage (possibly ali)
Worst case scenario - trilaminate dry suit, uggi, xerotherm arctics and M&S thermals, I like being warm

Current height/weight 6'2 17 stone
plus usual clutter of reel, smb, torches etc
TIA
