wow yall are getting a tough time? i found it extremely easy since okim made a nice post about how to get started.....here ill detail what i did for my UIN campaign .
TRADING/EARLY STAGE
I got my little courier shuttle and hightailed it to achiles star system. There you can buy low tech parts and sell it to a station in the same system and repeat forever. I did that until i bought a trio of micro-freighters. Then i repeated the process until my little micros couldent hold any more components in their compartments. Then i bought a trio of hammerhead freighters (two cargo-one passanger) and some UIN police escorts. Then i traversed the stars looking for free loot.
EXPLORATION/SALVAGE STAGE
I got EXTREMELY rich off traversing the system and selling salvage off broken stations. I always brought the maximum crew for salvage and usually you get one of two options after choosing what kind of salvage operation you'll take. You can Take a ship before the broken stations collapse, or take all the loot inside(there's sometimes the option to just take the datacore and run off with cash but, i wanted the salvage for the rare weapons that are hard to find from some factions if your not joined with their cause". The loot gives you more money, but the ships are usually rare variants of the factions ships(especially the XLE ones).
Specifically Laswis and Rexx systems have these broken stations (hah wrecks at rexx) but there's one INSIDE uin territory....somewhere i dont remember. these three stations alone will give you either 3 quick cash salvage runs, or an advanced destroyer/cruiser fleet of 3. also you get a TON of high tech components that make BANK when you sell them at a shipyard. Trading them for a premium is way better then just hawking them off.
COMBAT/RAIDING PHASE
I put most of my skill points dedicated to the burn drive and the advanced optics modification to stack with the targeting core. My cruisers may crawl on the battle field but i at least can get to the battlefield and out range a mother ship. i explored every star system before i made a dedicated attack fleet, although most of the reason i took so long starting combat was both because i wanted to see everywhere first, but also because it was a pain to find some favorite weapons of mine and i refuse to configure my ships out of my own custom variations. Now i just raid RSF attack fleets and uin carrier groups both out of hyperspace all day.
You can do the whole "patient trading and eventually gathering enough crew and cargo space to go after broken stations to get rich" thing with any faction really. There are a generous amount of station wrecks out there for all factions. i skipped mining all together but ill pick it up next time. My point is if you know where to sell components and you have a bit of patience with the trading and salvage operations you will make bank to fund all your operations for the rest of the campaign.
Tip 1- if you pay the fee at a pirate station you can make even more money than you paid for or at least get some of it back by picking up the "jolly rogers" item and selling it to any security station in the trading screen.