My suggestion is to find a buddy that knows what he's doing and brew a few times with him. You can share the costs and effort and learn how to do it. That worked really well for me. Plus you can ease your way into the equipment that way too. No sense getting all the equipment etc. before you know if it's something you will continue doing.
I've fabricated my own equipment; 24 gallon boil pot with wort chiller, 13 gallon conical fermenter, modified large cooler with perforated false bottom for a mash tun, and some bottle drying racks that really help with bottle sterilization. It's a fun hobby and you'll make some really good beers but don't think you'll be saving bunches of money because you won't.