Leveling question

Hi Guys,
Iv searched this question but seem to always find people reccomendong different things. I'm looking for a yes or no answer here ( of course more input is always welcome)
If I want to run some Bilstein 1500's upfront can I use my stock coils?

If I install a new set of leaf packs to give me 2.5 lift in the back will I NEED to extend the break lines?

If i do the Bilies up front set to 2.5 and a 2.5 inch in the rear will I have the same "rake" of look my truck has now only taller?

Thanks for any input!
Chris

 

Yes to stock coils. Might ride rough.

Yes, if you were to lift equally front and rear, rake would stay the same.

 

Thanks Guys!
This may be another dumb question, but if I do a 2.5 inch in the rear and I replace them with these ( http://www.suspensionconnection.com/62261tr6.html ) would it make a difference that they are rated for a 3-5 inch lift? Will they for my 2.5 inch lift?