If a spetnaz shovel is like a regular shovel. (not something what simply uses ”shovel” in its name)Its handy to create radius of its socket or collar but you dont need a swageblock. You can do fine just with a mandrel(and anvil, duh...) And if you are really good, can get by without if you are not welding its collar closed or instead making a strap riveted shovel.
Btw, just looked up Spetsnaz shovel.
Lucky you, tiny thing like that. Virtually no curved neck and very minimal lift to deal with, will be easy to make.
Also, just looked up a video what Mr. Steele made. (Had to turn off its dammed anoying audio) What he made is not a shovel. Its very broad blade socketed spear.
Have fun...