Suggestions for Galactic Bazaar, Ships, and Bases

Galactic Bazaar
Allow manual entry of quantity
Allow for time-dependent fluctuation of prices
Allow prices to rise and fall with purchase and sale to scale of galaxy size (larger galaxy = smaller changes)

Ships
Institute a halo/ring about the ship based on remaining moves
Darken refit choices if that choice is weaker than present version of ship
Allow for stacked fleets to move as stacked

Bases
Institute a halo about the constructor ship indicating base, field stabilization, and support system radii
Rework bases so an initial base build is just an empty shell.  Allow for a finite number of upgrade slots, maybe specialized slots, too.
Increase combat rating of military bases unless their main purpose is to create hyper lanes in each sector.