Justin, what I'm about to tell you may seem a bit harsh but I don't mean it that way, I'm only interested in helping you. I've been making spinnerbaits and other stuff for over 15 years so I know of a lot of sources for materials but when someone wants to know the most affordable way to make baits I tell them just to buy them because there is no such thing in tacklmaking as affordable. That being said the most affordable way is to buy the heads and do the rest or buy them painted and do the rest but it is still going to cost a good bit and if you are looking into bending your own wire, pouring your own heads and making skirts and basically the whole nine yards then you need a significant investment. If you want to make 15 to 25 baits the initial start up would be around $200 to $300 depending on how many items you can get discounted. Affordable buld blades are raw steel and it won't make for a good bait unless you can afford to have them plated which is why steel blades are cheap, because without any treatment they rust in 2 days. To make a great bait you have to be willing to use premium blades, you need to use good hooks and the wire must be of good grade, there is no affordable in it, affordable makes you produce 1 dollar walmart specials. The most important part of a good blade is the swivel, crane swivels are cheap and work but you aren't going to effectively slow roll a bait with a crane swivel, then you have roller swivels which are good but at only a few cents cheaper than a good ball bearing swivel it makes no sense to use them. Ball bearing swivels are expensive, the imported one that are of a good price all fail, trust me I've tried to find good one and they don't exist, there are only 2 swivels that will ever go on my baits, and they are Sampo or Worth, personally I use Worth swivels almost exclusively and to make them affordable you need to buy a thousand at a time and buy the split rings seperate and it is going to cost you $300 just for those. I know it sounds like I'm trying to discourage you, I'm not, I'm trying to let you know that making tackle is about quality and quality isn't affordable because if you are making tackle to save money it isn't going to work because of initial investment and if you are doing it for better lures then you can't do it with cheap components. If money is an issue there are 2 things you can do, 1 is to save up about $500 and get good quality stuff or 2 is find a partner that can help split the cost and you and your partner can learn together but to save money you are just spinning your wheels because even with bulk pricing a good bait with good componets is still going to run about $2.00 per and that is only counting the blads, swivel, paint, eyes, and wire, not included is the lead or your time. So think it through and if you want to get started I'll help you out by giving you places I've found the best prices for different things, and this is not going to be a one stop shop, once you get into it you'll end up with 10 or 12 different suppliers as some will have better prices on one item while another has a better price on a different item. Good luck on what you decide.