I have the FA version. You need to have at least one starter set because it comes with dice, movement bars, rules, and everything you need to play. From there you can buy expansion ships and they come with tons of goodies including new gametypes.
They have a ton of expansion ships and range from $13-$70 depending on size and where you get them. Amazon is far and away the best place to get them especially if you have prime.
I have th FA base set, 1 E-Wing, 1 K-Wing, the Falcon, the Outridder, and 4 Tie Fighters.
A friend of mine hs the entire Imperial Tie fleet and between 2 other friends they have the Scum and Villainy fleet.
A 1v1 game will take 30-45mins but a large game like the ones we have been doing can take 90mins.