Would Meade 12 inch or 14 inch lx200 or the lx90 12 inch telescope be portable as i need to travel with them?

Answer 1

Those would be too big and heavy to travel with. People do it, but it isn't easy.

Answer 2

The focal length that gives the better resolution. The size of the primary liens is also important ,example u have a 6 in. liens to get some real improvement u need to go up to a 12in. the next step over the 12 in. is 24 in. see the problem.