I use maxima chameleon and maxima ultragreen to tie leaders. I bought 27yd spools from 25# down to 2#, then one shot spools in 4# and 2# to use for tippet, then eventually one shot spools from 12# to 2#. This is enough line to tie a lot of leaders.
For you, I'd suggest maxima chameleon 25#, 20#, 15#, then maxima ultragreen 12#, 10#, 8#, 6#, 4#, 2#. I'd get one shot sized spools of 4# and 2# for tippet. Some people do not like maxima for tippet material, it is what I prefer though. I also do not use Flouro, but many people do.
You'll probably be at 40 bucks for this setup (excluding the one shot spools). FishUSA has pretty good prices on Maxima. I'd say you can tie 45+ leaders with them. I use all blood knots when I tie leaders, others use different knots. I have always hated extruded tapered leaders and I have been making my own leaders for a long time using the materials listed above. There are lots of good leader formulas available online.
This is about 10 bucks cheaper than the maxima leader kit that Cabelas sells. Make sure you keep the spools in a cool dark place so that it doesn't get degraded before you use it.