It is not feasible to do what you are asking. In short the answer is - no. Your money will be better spent by selling your MacBook and putting those proceeds with your LCD money, then buying a laptop that has what you want on it.
Within reason most things are possible. Many of those things are not plausible to do. Upgrading to the LCDs you mention (3rd party, MacBook Air), can be done. You will need to custom build an interpreter board to go between the LVDS/video cable on the MacBook and the new LCD to make it work. 98%+ of the people on this earth are not capable of doing that. If you paid someone to do the work, it would most likely cost you more than the purchase price of a new MacBook Pro, to get the first one built. If you could find/develop a market to sell the interpreter board on and had the start up money for the project, then it would be a plausible venture.