I would never be one to comment on another's finances, and I freely admit that when I went through college I was very fortunate and was never *really* in need of money (now, wanting more beer money is another thing entirely...but thats 'want,' not 'need')...but...
If at all possible I would NOT sell your rifle. With the political climate the way it is, it is entirely possible that when you find yourself able to repurchase your gun it might not be legal for you to do so...or the cost might have spiralled upwards so much that it is out of reach. Someone here once said the only time he ever sold a gun he ended up, after a few months, with the money gone and the gun gone.
Examine the budget. You'd be amazed what you can do if you cut the fat. The gun retails for what? How long will you be able to live on that money? Subtract out the cost of that SKS, too...that makes the cash you clear on the deal even less.
Of course, I don't know your situation...it is very possible that this is your best alternative. If so, good luck to you and take care of business.
Mike
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"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." -Robert Heinlein