I Have A Hard Question To Ask!! I Have An A Frame Roof And I Would Like To Lift The Whole Roof Up To Make It A Third Story. About How Much Should It Cost. My Roof Is About 7 1/2 Feet Tall To The Peak And Is About 30 Feet Long.

May not even be possible. You will need an construction engineer to look and see if the foundation can hold it, If the supports on the first floor can even hold the additional weight

Also of course you would have to see if that area is zoned for a home that tall, depending on the area special permits may be needed for over a second story.

You may have an easier time by modifying the width of the existing structure to add additional square footage on the first and second floors... rather than increasing the height by adding a third story. Either way you go (and depending on where you live and your local building codes) it's likely that you'll need to have the remodel designed by a licensed architect or civil/structural engineer and it's probably going to take their "official" load calcs to get your building permit. I do have an idea for you though... where abouts do you live?