um... it doesn't seem to have been brought up but why keep the house? If you can rent cheaper somewhere. How much do you owe on the house? You mentioned you are current on the mortgage, are you underwater on it? If not, could you sell the house to pay down the CC debt? Sure losing the house is rough, so is bankruptcy... but you can recover from losing a house easier IMO. Without that mark against you, you'd be able to get another mortgage in the future or other types of loans if needed.
I also don't understand the life insurance, you said you could borrow against it later, you could do the same with a roth IRA as well. This sounds horrible and I by no means really mean it, but unless your partner is dying in the near future, you probably won't likely see any returns on it. If you keep paying it, you'll run out of money and he won't be able to pay it either. In that case you'll lose it anyways.
If you file bankruptcy, and think you're okay without truck/CC debt, sorry but you aren't making enough to be "okay". You would be scraping by, netting anywhere from $10-200 a month. That's not enough to cover any type of emergency. Winter is coming up, a bad storm where your house is damaged, you or your partner gets injured, then you'd be back to using the CC again. And even if he does find "holiday" work, that's seasonal, it wouldn't be long term so you can't rely on it.
I hate to bring this up but if you are out on disability currently but hope to be back in 2 weeks. You may or may not have a job to go back to, depending on the industry you work in. I've known people that had to take disability/worker's comp and they generally were the first ones to be let go if the company was cutting back. Why? Because an injured person is more likely to cost the company in medical expenses/re-injure themselves. Old wounds don't ever "go away" even if it is healed, IE: broken hips are still weaker than if it had never broken... Employers look at this when looking for people to cut since it'll be either you or them, and they look out for themselves first.
I'm sure all of this feels like we are ganging up on you/scaring you but well... it is scarey to be so close to the proverbial cliff and watching someone not move away from it.
edit: it was mentioned in passing above, but to restate it, you may not be off the hook for the truck even if you give it back. You'd still be responsible for the loan that you took out for it. You didn't borrow the truck from the bank, you borrowed the money for the truck. The bank will want the money back, and if they can't sell the truck for all of that, they will still hold you accountable for it. If you're plan was to get around this with bankruptcy as well, why return the truck so early?
edit: re-read my post, and noticed I didn't really offer much of a solution :S Aside from cutting a lot of your costs down to what you need to what you eat/where you sleep/how to get to work, you don't really need the rest of it. You mentioned you know you are living outside your means when you talked about the CC debt. But it still applies even now. The insurance aside, you could cut phone/internet/electricity costs. For example, the phone sounds expensive, is it a smart phone? Sell it, sure I.P Daley's guide lets people cut phone costs down but get rid of the smart phone so you aren't tempted by data usage. A strictly emergency call/texting phone and for work (partner needs phone for interviews or to set them up). Use the internet for all things you would do on the phone. Or if you are on a contract for the phone with unlimited data, get rid of internet and tether computer to phone.
Also you should talk to partner on how you two will work out getting to both jobs (once he gets one) or how he gets to the interviews once you are back working. With only a single car between the two of you, one of you will be walking/taking transit unless one of you works an off shift. But if both are using the car, you'll be running up gas bill for it. Just something to consider.