This is the setup you want to have in order to compliment your loop. Have 1 Golden Ladybug in your hand, 1 Fusion Recycling Plant, 1 Recycle, and 1 Guarded Treasure face up on your field. Remember to use Golden Ladybug to heal your LP every turn. As cost for Guarded Treasure you can discard Outstanding Dog Marron, Polymerization, Pot of Benevolence, at most 1 Cyber Dragon monster, and at most 2 Exchange Gift. This is so that the discard does not interfere with your strategy. Although you can discard any non-monster card, as long as you return them to the deck with Recycle. The uses of these cards will be explained further under the "Loop" section.
Since Cyber Dragon is not yet in the game we will have to use Cyber Dragon Zwei and Cyber Dragon Drei. Both of these monsters can count as Cyber Dragon while on the field or in the graveyard. However in the case of Cyber Dragon Zwei, you must first reveal a spell in your hand for him to count as Cyber Dragon so always keep at least 1 Gift Exchange or Pot of Benevolence in your hand. You will search these monsters with Draw Sense: Light and also use them to stall while gathering your combo.
With Outstanding Dog Marron you will never deck out so to extend the duel you will only need to worry about your opponent decking out. Use Pot of Benevolence to return your opponent's cards from graveyard back to deck. Also can be used so that you will have exactly enough cards to not deck out with Guarded Treasure. Use Gift Exchange to give Localized Tornado to your opponent. Localized Tornado will be activated when your opponent is about to deck out extending the duel by a lot.
Sinister Serpent, every 2 turn, use fusion plant's effect and discard the snak to add poly to your hand. (((((Every 2 turn)))))
There is a way easier possibility to summon Cyber End Dragon
Take Cards like Econ or Kunai with chain in your deck to survive and then you have to take 3000 or more damage with the other skill to summon 3 Proto Cyber Dragons on your field, then summon These 3 bad boys and you have your Cyber End Dragon on your hand.
My Deck is full of Polymerization and support for Poly so in Turn 3/4 i have the Cyber End Dragon on the field.