Ad a leaf w/ Bilstein 5100??

Hi all,
I'm new on the site and looking for a little guidance. I have a 1999 Tacoma 4x4 extended cab (non-trd) and just purchased the Bilstein 5100 suspension set (http://downsouthmotorsports.com/i-1...t-adjustable-1995-5-2004-pair-front-rear.html). I am wondering if I should get an ad a leaf in the back. I haul dirt bikes around quite a bit and the stock suspension is sagging a great deal.

Questions:
1. Will the add a leaf (AAL) ad harshness to my everyday ride?
2. With the AAL, could I keep the stock ride height?
3. Will I have to get extended breaklines or anything else?

This is the AAL I'm looking at:

http://www.4wheelparts.com/Lift-Kit...out&ppcfon=1&gclid=CN-Pv6a6wrgCFSJqMgodFCcAOw

Thank you very much for the help!

 

1. Yes.. A bit. It will stiffen up what you currently have.
2. Not sure what you mean. An AAL will lift your rear by 1-2". (depending on the AAL)
3. No. Pretty straight forward addition..