Hey Cafe, sorry it took so long to get back to you. My DSL is kaput and I have to swap wires around to do dial-up...
I did the same thing with my wheel by swapping out a stock rear 18" rim to replace the 19" one, and I just odered the SS spokes from their website, and stated on the order form the kind of parts I was looking to lace together. I found that I had to drill out the rim holes slightly because the nipples were a very tight fit with no lee-way to achieve to the slightly steeper spoke angle needed. The angle on the nipples in the undrilled hole was just enough off that it just wasn't working. The stock nipples had plenty of movement in the rim (I checked), so I figured that it wasn't a problem to drill them slightly more open for the new nips. I haven't snugged down the spokes in their nipples yet, and it looks like I might have to grind some spokes down, but the paperwork with the spokes from Buchanans indicated that I might have to do that.It was a tough job muscling those spokes into place!