Wedekind sleeves are much, much better than the alternatives (pins or
Uerling sleeves).

I happened to be part of the DG Yahoo group and someone offered 5 sets
for sale for a DG-200 (which will most likely work for the DG-10x).
Email me and I will share his address.

I bought my Wedekind sleeves from McLean Aviation (UK LS DG Dealer).
Nice folks.
However their Wedekind information didn't cover the DG airbrake
installation sleeves that they sold me.

York, UK 01904-738-653
http://www.mclean-aviation.com/

Also see http://geocities.com/jhderosa/aviation/wedekind which shows
how I installed the sleeves.