I'm getting ready to do the same thing. I picked up a used ibanez sr400 w/ p/j pups and active eq. for around $200 US.
It's 34" scale w/ 24 med. frets. I figured that would give me a large range to work with.
I also picked up some D'Addario Piccolo strings for 34" scale - they come in a pack, ready to go. I don't know if I'll need to replace the nut, several forums say you do have to change the nut because of the smaller diameter strings, others say you don't. I'm going to switch the strings and try it w/ out changing the nut first. Has anyone out there converted an SR Ibanez to piccolo?
Once I get the bass set up, I'll start looking for cool effects pedals. My amp has chorus and envelope filter, so I'll probably try reverb next. Any ideas?
Hope that helps
all's well that ends