I'd have to agree with Gina-chan. I looked over the maintenance area pretty thoroughly, and came to the conclusion that any activity in that region would come across as very suspicious. Firstly, the corridor only goes from the maintenance elevator and up to the Lucky Stars. This is one of the primary problems; think about where you'd actually end up. You'd be entering a casino (of sorts) through a door that's likely reserved for employees and other staff or droids. Furthermore, employees wouldn't be doing their job right if they weren't paying attention and watching for cheaters, so they will be alert and have a high likelihood of noticing. If none of the employees recognize you, and if the prejudice mentioned earlier comes into play, they would probably alert the Imperials even if it was a false alarm.
Also, we don't know if the maintenance hall itself is under surveillance along with the rest of the floor. If you show up on screen on an Imperial's monitor, chances are pretty high that they'd at least go to investigate why 'civilians' are in that corridor, particularly if there's no other workers using it, or if the workers are all droids.
The only purpose I can think of for the maintenance area by the elevator is a possible meeting place for when we first head down.
There is another possibility I tentatively considered, which was going to the hanger via one of those offices you see by the maintenance area. Very risky, with a slim chance of success, now that I think about it more critically. Naturally, this means that the wall would have to be breached, which in itself poses a few problems, namely how it'd be done. Setting that aside for the moment, there are numerous other problems, namely that the stormtroopers would notice and thus would make the rest of the plan very difficult to accomplish.
Yet, at the same time, provided an office was secured, it could be possible to go back and forth from Switch's locale and smuggle a lot of weaponry to that office, which makes a quick firefight a bit less daunting. I say 'quick' here, because the firefight would be meant to be cover for two others to hypothetically grab the frozen person, and then once that's done, everyone would make haste for a ship and take off.
It is possible, but as I said, is also very risky. It could be done easier if we had a larger group of people, but we don't. There are a few too many flaws and probabilities with that plan for my tastes, but I thought I might as well share it for other people to look at.
Regarding a Computer tech person... I believe that skill requires Int, so, with Ayrn's permission, I could swap Gather Information for Karra with Computer Use... she'd probably be adequate with it, although admittedly her Int score is slightly low right now. I seem to fill in the Computer Tech role pretty often anyway
Oh, on another note Ayrn, I just realized... her attack bonuses as listed with her claws and handgun haven't been increased from the now 2 BAB.