First of all, that sucks really bad, dood, I feel bad for you.
I bet if you were to sand it down and do all the prep work yourself it wouldn't cost a lot more than a couple hundred bucks to get a body shop to spray it for you. You could even spray it yourself at one of those booths that you rent (if you feel confident in doing that). IDK, how bad is the damage? It all depends on whether you feel it is worthy of investing a few hundred dollars in.
And with youre insurance, if you have coverage for your truck (meaning more than just liability) it seems like this is the time to use it (since you didn't cause the damage). But they still might raise your rates, it's hard to say. I got in a wreck and they still haven't raised mine

(waiting to see what will happen). I wonder if it is even possible to call and ask what the repercutions (sp) of filing a claim would be.
Other than that, touch up paint and buffing are probably the best you're going to do. What color is your paint? It depends how bad the damage is, but Scratch X and stuff like that (like desentrix said) don't really even work that well in the first place, much less on big scratches.
I don't have much in the way of money either, but if I were you I would put away as much as you can for the next few months (do you work?) and then get it painted. But I couldn't live with a huge scratch like that (my fenders are already bent and my grill is cracked, lol). But it's up to you, depends on how massively important it is to you.
Good luck, dood.