You can do something like this-- http://www.gmsquarebody.com/forum/showthread.php?p=170571. Try to check out also some bumpers here like the Warn winch mounting system-- http://4wheelonline.com/Truck_Bumpers.14. Good luck.
I recommend Skyjacker-- http://4wheelonline.com/Skyjacker_Suspension_Lift_Kits.3152. They are not the cheapest but they provide a good ride quality. Rough Country is another option though I heard that it is too stiff.
I have a 4" suspension lift but it is not yet installed on my K20. I went with Superlift because the sales guy from http://4wheelonline.com/Superlift-suspension.20304 gave me a good price. I chose 4 inch lift since I'm not going to do intense off-roading.
I finally decided to get the Baja wheels after the sales rep from 4wo|american racing rims gave me a good price. I chose the polished finish. Will upload pics once they are installed.