when can I order the challenger

Dear ms joomi-  I've been around car dealers a long time and I've never seen one who wouldn't take your money- for a car on the lot, one you want to order for future delivery or even for the flagpole outside is you need a place to hang your banner.  I suggest you call your local dealers.  Expect to give them a deposit and make sure they agree to make it one-hundred percent refundable.  This will probably put you in line to place an official factory order, equipped just the way you want, as soon your dealer gets his first factory allocations.  Good luck from Bovan.