Something else to consider is that while a kit may cost more in the end, that expense can be drawn over a preiod of time. In other words, if you had $100/month to spend, the first month you could get the kit and some glue, next month buy an engine. A month later get wheels, tank, covering etc. and later get your radio. So while you're paying a little more, you're not doling it all out in one lump sum.

BTW, the tools needed are as many or as few as you desire. I once scratch built a 2 meter glider using only a set of drill bits (No Drill) a razor blade, a hacksaw blade, and a piece of sandpaper (Used household Iron foir covering) and the plane was beautiful! Of course, I wouldn't want to have to do it that way again, but it just goes to show you that you don't HAVE to have a shop full of equipment. A few driull, a few razor blades, some sandpaper etc.

The one tool I would recommend getting would be a razor saw. They come in very handy