The last drawing looks good.
Also what hj says would work too. I don't know where you lavs are though.
Consumer report on the new toilets
How Green Are Low-Flow Toilets?
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Lav's and Tub are 12 feet across bathroom on oppisite wall. I will do them together and then cross the room to join into the 4" drain with a wye combo. Thank you all for your input.