Originally Posted by
Uriah
It's easier than you think. I've done every one of my long hikes on a budget (on purpose; thankfully money isn't tight) that would have most the so-called experts here cringe. Plenty of others also have, and you often meet them out there, particularly the younger crowd. Hiking is not expensive! But I don't know what the thrift stores are like in St. Augustine, and I doubt, for example, they'll have decent jackets.
You'll almost certainly need a replacement pair of shoes; look for them first. If you don't need 'em, or don't think you will, all the better. Clothing is typically a no-brainer for conditions out west, especially during that time of year. You don't need much. Frog Toggs is a good choice, and you'll likely see others carrying/wearing them. Buy their "suit" and you've got both the pants and the jacket, as well as rain protection AND mosquito protection (if it's required; depends on where you're hiking; it's buggy in the Sierra this year and is only going to get worse).
Fleecy clothing could be necessary (again, depending on where you'll be), as might be a thicker insulating jacket. You probably have most everything you need, if you delve deep enough, but it could be worth making your own alcohol stove (cheap, light, effective) and using a plastic/lexan spoon instead of aluminum or titanium ($$$). Think this way and you'll be okay. I've done everyone of my hikes (PCT, AT, etc) on the cheap (much cheaper than I'm told I could survive on, in fact), because I look at it as another part of the challenge, and it allows me more and more such trips.
Tell us some specifics (where you'll be on the PCT) and ask some specifics, and you'll get clearer responses.