need the help of the disboards again 
i originally booked a stay from 10 to 20th May, but now we need to add another night prior to that. now, the promotion that was running when i originally booked my trip ran out a few weeks ago, so now i can't add on without seriously paying $$$$$ more.
so now i thought about booking one night for us in the hyatt orlando airport hotel prior to going to our stay in OKWl. if i do this, can i still make use of the ME ? and if so, how do i do this ?
if we don't use the ME, what would be the easiest way to get to WDW (we're with 5 adults, one kid) and how much would it cost us ?

i originally booked a stay from 10 to 20th May, but now we need to add another night prior to that. now, the promotion that was running when i originally booked my trip ran out a few weeks ago, so now i can't add on without seriously paying $$$$$ more.
so now i thought about booking one night for us in the hyatt orlando airport hotel prior to going to our stay in OKWl. if i do this, can i still make use of the ME ? and if so, how do i do this ?
if we don't use the ME, what would be the easiest way to get to WDW (we're with 5 adults, one kid) and how much would it cost us ?