Jeep Sahara JK 2015 SWB lift kit suggestions

[Giri_4x4]

Hi, fellow offroaders, 

Can anyone suggest me on lift kit for my Jeep JK SWB Sahara.

I have a 17" stock wheel, and I wish to change it to one with a -12 offset, and add a 315/17/r17 Geolander tyre, I guess this info is needed to decide on the suspension.

I do not wish to alter the geometry of the stock jeep and start changing other related parts one by one or buy a more expensive kit with a huge set of parts.

I guess 2 to 2.5" will be OK?. 

Which brand offers value for money?

Any suggestion on a vendor or garage that does a good job?