God Live and Uncensored
It's been quite some time since I've had Gaster's bound work in my hand, but I do not recall there being a Hebrew text accompanying the translation. One manuscript version of "Sword of Moses" is published in Dr. Peter Schafer's magisterial collection of Hekhalot texts and fragments. The scholarly apparatus is in German, but the Hebrew/Aramaic text is fully presented (though without vowels, making correct pronounciation of the names speculative) in sections 598-622. You just have to be able to zero in on it. Noah, the citation for Schafer is:
Schafer, P., Synopse Zur Hekhalot Lituratur, (Heb./German), Tubingen: Mohr/Siebeck, 1981
Two other sources of information:
Yuval Harari, Harba de-Mosheh. Hebrew University MA thesis, 1991.
Moses Gaster, Studies and Texts 1971.
(Illustration: E.M. Lilien Bookplate - the divine word breaks the fetters of ignorance)