Ok, I'll be the fly in the ointment here. I'm also not a fan of carpet but dislike laminate even more. Hold out and spend a few extra bucks for hardwood and perhaps tile for under the tank. I know it's a mobile as you mentioned and you won't be in it forever and you're on a budget etc. Look around for deals, you could probably get some half decent hardwood for 2 to 3 dollars/sq ft. Might not be the best stuff for that price, but it's so much more solid than laminate and can always be refinished, a number of times if needed.
I'm in the midst of flooring renos as well and have pulled most of the carpeting in my place. I managed to score sufficient hardwood for most of the rooms at auctions held by an auction company from the coast that swings by Armstrong and Winfield from time to time. I think most of it comes from China, but I don't care, it looks fine and the price was definitely right.
My problem is, I'm slow but like to think I'm thorough. Things aren't getting done in a hurry, the living room is mostly done and I actually screwed the planks down instead of using a nailer. This meant pre-drilling and countersinking holes for every screw used to hold the flooring down. Also, since the planks I used in the LR are all the same length, I decided on a double herring bone pattern for putting them down. This meant I had to cut off the tongues and route a groove into the end of every few planks and cut plywood strips as tongues for the ends of the grooves that mated to these. A ton of work, probably anal, but the end result is worth it.
Here are a couple of photos. Actually the under floor electric heating I put in for under tile at the bay window, but you can see part of the hardwood as well.
