I was given an AAL .. now what to add to it?

I was given an add-a-leaf good for 1.75" lift on a OR. It seems silly to not put them on since they were free So ... what to add to them? I was thinking the Icon 2.5 VS IR coilover's up front with 2.0 VS remote reservoir shocks in the rear. The other option I had was Toytec, and grabbing the front & rear shocks from the Boss kit (Front TTBOSS25-RD, Rear TT-20056RR). Looking to keep the cost under $2000.

Would it really need a 1/4" spacer plate or can I level it out that small bit with the pre-load adjustment on the coilovers? What about replacing the UCA? It seems like every thread on lifting the truck has conflicting information. Some say you need the spacer to keep the ride level, others say use the pre-load, some say to always replace the UCA, others say no, and don't even start on diff-drop and rear shims!