I am not constrained by budget, but my keep it simple advice still stands. You can pour any mold with a ladle. The big pots are nice if you are pouring 50+ jigs at a time. But what the heck, get both a 4lb pot and small ladle and a big pot and see which you use the most.
The only thing I use my wire former for was for inline spinners ( Mepps) but eventually I got the hang of good pliers and found that even easier and opened up even more options like turning spinner baits into chatter baits. Bending my own spinner bait wires was never worth all the effort for me (I have done a few). Really good pliers set you back some $$$, but they are worth it!
The place to spend money if you have it is one REALLY good ventilation! Check out the Do -it site for some how to videos and check out their ventilation system! I've been to their HQ and I have serious work space envy!!!
Like I mentioned, I make darn near everything using a pot and ladle and I can make them a lot faster than I and a couple buddy's can loose them!