The butane adapter will still work with the Primus Express Spider remove stove (although I doubt the butane adapter will fit into the Eta pot with the rest of the gear) and you can make your own custom wind shield and bottom heat reflector using titanium foil available from;

http://www.titaniumgoat.com/windscreens.html

You can also peg out the wind shield using a couple of titanium tent stakes to keep everything in place for the new stove.