I plan on playing with minis once I get them in the mail and can paint them up. As a word of advice, if you decide to go with the minis, trace your turn key and fire arc diagram on some clear acetate. It makes it easier to use.
So far, all the games I have played have been fun. Ship positioning is a little less critical than in ACTA as far as getting weapons to bear, since there are no boresight weapons. The lack of a pre-measure does mean that you will hold back a bit more on slow loading and one-shot weapons. As my FLGS owner put it, the game is similiar enough to ACTA for ACTA players to catch on quick, but different enough to force you to change your tactics.
I don't know about the scale of the ships you listed. I am using/going to use GHQ Micronauts and Panzerschiffe ships. Panzerschiffe are very inexpensive and are at a 1:2400 scale. GHQ are much more expensive on most items, but are far more detailed. They are also 1:2400 scale.
Hope that helps some.
BS