Just something to keep in mind for the future, if you do decide to go with a BDL setup, you can get the whole kit from Redhawk Rifles for about $240 (bottom metal, mag box, follower, spring, and action bolts). That would be about the same as the cheapest DBM option plus one discounted AICS mag, so it may be a wash for you.
Your best bet is to get the B&C for now and start saving up and watching various classifieds for someone to post up a deal like the one I linked to where they have the stock and bottom metal together.