I'd go with the Lyman if you want quality, Lee if you're cheap. I've had both, and I threw my Lee pot in the garbage can.
BTW, the lead alloy for making fishing weights is not going to be the same as the best alloy for making bullets.
What's your source of lead? Raked berm lead bullets will mostly be the correct alloy. Wheelweight lead is very good if you add a few percent tin to it. Old fishing weights most likely are pure lead, and you'd need to add about 5% tin to get an acceptable shooting alloy.
To 10 lbs of wheelweight lead, I'd mix in 1/4lb of lead-free tin plumbing solder. To 10lbs of fishing weight lead I'd mix in 1/2lb of the same lead-free tin plumbing solder. Note that there may be two different kinds of lead-free solder at the local hardware store, tin and silver. If it's labeled "tin" or :"Sn", it's the one you want. If labeled "Silver" or "Ag" it's the wrong one. Some tin solders have a small proportion of Antimony, so if you see something like 95:5 Sn:Sb, that's the right stuff. It means the solder is 95% tin and 5% antimony.