I think I thought of something for Mayosenju Daibek's effect. 

This card cannot be Special Summoned. This card's Normal Summon cannot be negated. This card can be Normal Summoned without Tributing, but if Summoned this way, make its ATK 0. If this card is Normal Summoned: You can target up to 2 cards on the field; return them to the hand. During the End Phase, if this card was Normal Summoned without Tributing, return this card to your hand.

As for those other two Pendulums, Sarenshinchu and Urenshinchu, I can have their Pendulum effects removed and their monster effects go like normal. 

Also, those lvl 6 Yosenjus rely on the Pendulum Summoning to properly use their effects... Hmm... 

Well, before I work on this more, this falls into the hands of the GM to decide whether or not this archetype is even valid.