I’m about as cheap as they come, so let me tell you how I do it. I got a turkey fryer for $20 on Craigslist with half a tank of gas. Harbor freight for a cast iron Dutch oven around $20/25. Hit up goodwill for a stainless ladle, slotted spoon, toaster oven, and cast iron corn bread mold, $10-12. Get a Lee pot, Lee molds, Lee sizers, and a Lee Reloader press.
Melt the sourced lead in the Dutch oven on the turkey fryer using the slotted spoon to stir with and remove any debris that floats. Flux with beeswax, candles, sawdust, or used motor oil. Pour into your ingot molds and voila, you now have lead for casting.
Heat up your pot and add some lead. Rest your mold on the edge to warm it up. Your first few bullets will probably go back in the pot till the mold is at temp, after that it should have very few rejects that are mostly user error. Once cooled you can size them then either lube or powdercoat them. I lubed for years, but powdercoat is not much more involved and definitely cleaner.
To powder coat, you will need a toaster oven, nonstick aluminum foil, an empty cool whip container, powder(Smoke on cast boolets), and either latex gloves or pliers to handle the bullets. Put a couple spoonfuls of powder in the bowl, couple handfuls of bullets, lid on, then shake vigorously 45-60 seconds and look to see if the powder is sticking to the bullets with good coverage. If so place them on the foil covered tray and cook at *400 for 20 minutes. If not cover and shake till well covered. Once done and cooled mic them to see if they need to be sized again. Load with a big grin knowing you made it and have skills and equipment to make more during times when none are available.
I have used a #4 Lee pot, a Lee ladle, and an assortment of Lee molds for all my casting for the last 15+- years. I have casted just over #900 of lead during that time and have not replaced anything yet. I got on Craigslist asking for lead and got just over half a ton for free a few years back, along with 10 years of tire weights when they were plentiful, and mining the berms when allowed. I probably have less than $250 in my whole casting & powder coating setup, no reason to spend more unless you are needing molds Lee doesn’t make.