Definitely useful !!!
You just have to find (or someone should make it for you - any machine shop should be able to do it) the suitable worm (screw) with the same pitch (modulus) and you are in business !
A bit of diamond paste used to polish the worm gear after the assembly would make it perfect.
Of course, the worm should be at appropriate angle (so the teeth mesh properly) but this is not an issue - I did something similar in the past and it worked very well.