My first knifemaking setup was a hand drill, claw hammer, 2X48 hobby grinder from TKS and some belts and sandpaper. Never have built a kit knife, I always wanted to make my own.

But kit knives do leave the "hard" part to do - that is to say, the part that makes the most difference. Spend some time hand rubbing a blade and you will certainly test your dedication!

(By the way, there is a lot of advice here on that one topic. This place is the best "book" you'll ever find, and it too is free.)
I would recommend three basic power tools for anyone who really intends to make knife making a hobby: belt grinder, drill press and metal cutting band saw. You've had some indcation their costs; a "really good" grinder will set you back $2K but you can do just fine for under $400. You can get a perfectly fine drill press for less than $50 at Harbor Freight, and their metal cutting band saw is a steal at $150. That $150 was the best money I have ever spent on tools, bar none. The $30 you'll spend for a good blade for it is right up there too. Do not scrimp on band saw blades or belts; that's a false economy. Buy the best stuff you can, you'll be far ahead in the long run.
Videos are great too, you'll come away with a lot of new ideas even if you don't adopt the method presented. Besides the books mentioned, good how to books are
Custom Knifemaking by Tim mcCreight, Wayne Goddard's
The Wonder of Knifemaking, Ed Fowler's two
Knife Talk books mix his unique philisophy with great advice. Check out
Knife World for probably the best access to a lot of good books.
Guess that's all from me for a while.

Enjoy, welcome, don't be shy. This is the best bunch of professionals you will ever meet anywhere.
Dave