Don't abuse ships that use too much crew? Using a 600 crew ship for a 300 crew ship job? I don't even know what you're trying to say. The ship I'm using for my mission is often on the opposing team in that very same mission, I'm using a level appropriate ship. Unless you're trying to tell me that I should be using a worse ship than what I'm going up against, in which case that's absolutely insane, I should be able to match what I'm going up against. Heck, I should be able to use a better ship than what I'm facing to make things easy and quicker.
https://dl.dropboxusercontent.com/u/46177663/Medkits.jpg
Yeap, all those medkits for sale from other players on the US PVP server. There probably is some in a different port, but I'm not gonna be assed to spend the time sailing around looking to see which port people are selling medkits in, as far as I'm concerned, if it's not in the nations capital (what should be the central hub of the nation) there's no point looking for it.
Can't make my own either, played for about 5 hours and got a whopping 24 fish meat. Unless I want to buy more off the market, but then looking at the price to make just one medkit it's not even an option. 500 gold per crew is cheaper than buying the materials to craft a medkit, and this is only a medium medkit, I can't craft large ones yet.
The last mission I did was a 152, got 68k gold, plus the 5k from the mission for 73k. Lost 39 crew for 19500 gold, used a repair kit during the battle to stay alive for 6.8k gold, had to repair my ship when I got to port for another 7.3k gold. So I actually only earned 39400 gold. And I did pretty well that mission, with about 500 hull hits, 6 kills and 2 assists, which took 40 minutes. 39000 gold for 40 minutes. Almost half of what I earn goes into just maintaining the ship I'm in now, at this rate it'd take me 33 hours to make 2 million gold, and be able to afford a nice exceptional quality constitution or something, and that's only assuming I have literally no other expenses in the meantime like losing a ship in PVP, which on a PVP server is going to happen because I WANT TO PVP. Grinding endlessly in PVE just to PVP every now and then is not acceptable.