You can get a brand new 40 gallon breeder (which has a better footprint for a beardie than a 55 gallon) for about $90-$100. You can then add a dragon and all accessories for another $75 or so.
Check petfinder and look for reptile rescues around where you are. You can likely get a BD for a small adoption fee. And the equipment much cheaper than that.
I sold my male hypo beardie with a 55 and all the accessories to take proper care of him. 2 UVB lights, 1 spot light fixture, 1 ceramic heat element fixture, and a big tote full of other random accessories for $100. So I dont think its a good deal.
i wouldnt and ya im 12 so i understand we had a beardie before there ok pets do you really think you'll want when your older and if you do find a better deal or just wait a bit incase it was and impulse purchase just my thoughts..