G'day there Aviator,
looks like you have the "pulse Jet bug" too.
A few friends and myself are going to build a pulse jet powered model,we too are finding it difficult to find pulse jet manufacturers,but as one of the posts indicated you can still get "Dynajets" from Curtis Dynafog in the U.S.A.there is also an Italian made pulse jet from Zanin
Have a look at http://www.tsxonline.co.uk/
the Aurora,a delta has 2 Zanin Z23 Pulse jets with 9 pounds of thrust each,the model weighs 12 pound,and download the video,you'll be hooked.I think you can get these engines from Z Model in Italy,sorry I don't have a URL for them yet.
Anyway, good luck on your quest for lots of noise and flames and speed....gotta love that!
If you find any good info,can ya let me know,thanks
May all your landings be right way up!