Like I said, if you mark the box at the top of Sch C that its an SMLLC the correct income should auto flow to the 568.

How much income are we talking about for the construction, CA has a minimum LLC fee of $800 as long as your gross receipts are under 250k. If your gross receipts are over that, you'd want to use 2 different Sch Cs and separate out the LLC income to keep it below that 250K threshold...but if its not, I dont think you need to hassle with all that, its going to be $800 due for the LLC regardless.

You can Efile all 3 returns at the same time.

Be sure youve downloaded/installed the CA SMLLC module so its in your list of states to switch over to from the federal return.