I think at one time or another we have all felt the constraints of a tight budget. Here are some ways you can save some money and get the foods you need to do things right:
1.) Buy in bulk, if you do not have the money to make the large order on your own find a couple of gym buddies or friends in general who would eat the same item(s) as you and go in on the purchase together.
2.) Buy directly from local farmers, I am fortunate to live in Ohio where there is no shortage of farms:-) I don't know if this is a possibility for you but, if you can buy from the farmers directly (especially if you buy in bulk as suggested in point 1) you can save a lot.
3.) Watch for sales, I can tell you that Whole foods just ran a special this last weekend where they had their pre made burgers (delicious I might add) for only 1$ each (they are made fresh, no antibiotics or hormones, mostly grass fed and 1/3 lb each:-)
4.) Buy other items generic. Buying a "comparable brand" of shampoo, toilet paper, shower gel, razors etc. can save you close to 40.00/month
5.) don't be afraid to ask the managers for a deal. I deal directly with the head butcher at the stores I shop at (or someone who can accomidate) and I will go to them and say i.e. I know the turkey is 5.99/lb but if I buy 20lbs can you sell it to me for 3.99 (most of the time they will).
As far as how to set things up, depending on what your bodyfat is I would either go with a low carb approach (2.0g/lbbw protein / .65-.85 grams fat/lb lean bw and carbs around w/o with a re feed every 5th-8th day) or (50/25/25 lean bulk as I outlined in Questions about AD) or a carb cycling diet see CT's carb cycling codex or the following link by Shelby Starnes of troponin nutrition:
Don't starve yourself down, that would be a waste of your hard earned muscle though and you will NOT be happy with the results. I know that may have worked for Batman but, remember hollywood and cameras can do a lot of tricks:-) Good luck and keep us posted.