I've got every intentions on being there my wife and I are both looking forward to it and can't wait!!! Noticeable increase in the ride quality and hieght. I'm at 15 " on front skid with 28.5 tires + shocks. I have the front shocks swapped and have been waiting since first of march on the sleeves. The sleeves were suppose to have been here 3-23. I'm not sure how I'll install the 15mm od into poly bushings yet.
The new rear shocks should solve any rubbing issues at compression you most likely are experiencing. I know I had rubbing at compression with my 27s.
Just to correct you, hopefully you just hit the wrong number but the sleeves should be 14mm OD and 12mm ID. Mine took a couple weeks if I remember correctly but still faster than shipments from China.
I used a simple bench vice for install, greased then pushed the bushings in using an oversized socket on the receiving end so the longer bushing could push into it and slightly smaller socket on the pushing end. I then just pushed the metal sleeves in with the face of the bench vice. I tried pushing the bushings in with the metal sleeve already inside and found it nearly impossible.
*Edit: just saw you're going to drill out the bushing. Good idea as more sleeve wall is a good thing but I had a hard time finding metric drill bits here. I thought of that as well. 1/2" will get you close, probably close enough.