I need Help--New Deck Installation--I know nothing.

--Live in San Francisco

--North Facing deck off of house.  Not a lot of sun.  It can get pretty wet back in the yard with fog.  

--Want to use IPE or Camaru (prefer Camaru for color, but am open to change)

--How do I protect this deck?  I see product referrals, but it all is a bit confusing?  What is the best product to use?  

--Structure will be redwood.  

--Do I stain the redwood prior to framing? If not, when to stain?  What product?

--Should I take the joists with protective tape?  My sense is no.  

--Do I stain the IPE/Camaru before installation the entire board.  I will let acclimatize prior to install.  Should I stain then prior to install.  Although not clear, I understand I should wait 2 to 3 months.  

--I am aware of wax on ends of boards following cuts to avoid checking on the ends of the boards

--Face nailing.  We want to face nail versus using clips?  Are there any problems with this?  We will then use plugs with glue--Any things to be aware of here on glue or plugs?

--Cupping--the deck is off of my house 2 feet to 3 feet depth.  The depth then shortens to where the deck is almost level with the ground.  I live on a hill, with backyard sloping upwards.  After about 5 feet out from my house, there is a old concrete deck structure-large square 17 feet deep by 25 wide, which means my deck will be above concrete.  Should I cover the cement with a vapor barrier?  I am planning on using 5/4 x 6 x 20 ft boards. Deck is 20 deep by 25 wide.  

Any help or tips is greatly appreciated.  Charles.