So Darkwurm + Destrudo is a Rank 7 (via OE Meteorburst) without using the normal summon. You Tomahawk into Firewall Dragon, NS the Assault Core under the Firewall and equip Buster Drake. Then Link 2 with one of the remaining Tokens and start looping the Assault Cores with the Firewall effect. It's still rather tricky for me to play, and I haven't managed to make Extra Link yet. I suspect that Extra Link might not be possible without leaving one of the Tokens out and putting a Link Spider up there as the final piece, since obviously once you have all the other pieces in play for Extra Link, you only have 2 zones from which to gather material, so Gaiasaber doesn't work.
Anyway, any questions are welcome, as are any suggestions. Decklist upon request. Also there is an actually infinite loop in this deck which can either deck your opponent out under Maxx C or banish an infinite number of cards from your opponent's side of the field by repeated use of Trigate's second effect. I will explain the loop upon request, it's only a 3 card combo.