Have some parts for lift, now what else do I need?

I have a 2006 DCSB 4x4 with about 170,000 miles on it , and it's my daily driver. The suspension is a little tired, so I've been want to upgrade. Nothing crazy. I picked up a front set of bilstein 5100s with 885 coils set at the lowest (1st) setting. I got a smokin' deal on them so I couldn't pass it up since it's the way I wanted to go. I also have a 1/4" spacer to correct the taco lean I have going on the drivers side front. I'm planning on ordering rear 5100s, but not sure what else I need to do it right.

• Will I need new UCAs with this set up?
• Would like to go with new rear springs. How much lift to level it our with this set up? Thinking about these http://www.autoanything.com/suspension-systems/61A2596A0A0.aspx price is each side, so X2.
• Who has best price on rear 5100s at the moment?
• Any other suggestions?

This tacoma is a daily driver that sees mostly payment, regular snow in the winter, and the occasional trail ride or hunting expedition. So, it gets used, but not abused.

I love this forum! So much good info and helpful folks!