The main tools I use for stock shaping from a blank are a band saw, number 49 & 50 rasps, gouges and chisels and scrapers, hand planes, The band saw can be replaced by a hand saw but the rest of the tools are pretty much what I use to shape a stock. I also use measuring tape, 36" & 48" straight edge, pencil, depth guage and ram rod drill, drill guide for pins, lock & Tang bolts, hand drill. The tools I have are not the most expensive out there but if you totalled the cost of my tools I use it would be several hundred dollars and probably between $1000 & $2000. If you include the band saw closer to 3 grand.
Now, I do several stocks a year so the cost of my tools are worth every penny I spent on them. If you are only going to do one or two builds there is no cheap way to get it done. I suggest you find a good buddy that has the tools and borrow them.
I know about bugets so I will tell you that I accumulated my tools over time. The first stock I did from a blank I did not have the tools I do now. Because I built a rifle from a blank is the reason I have the tools that I have today. Building from a blank is a hard job, the less tools you have the harder it is. If you turely want to build from a blank you will get it done.
Good luck