...I can't afford a big fire safe at the moment. Would one of those inexpensive 14 or so locking gun cabinets be safe enough to qualify if needed?
Keep in mind that at least two gun supply dealers (Midway and Brownell's) will give you a dealer discount once they have a copy of your 03 FFL on file. The discounts range from 5% to 20-25% based on the items. You might find something in your price range.