I have a thread on electrolysis on here somewhere also. Just made a setup and did a Belgian 1889 in it just a few months ago. I wish I had known about it back when I did the Swede in the first thread I posted.
I was assured by about a dozen different fellows that that rifle was fit to fire. Worst case I was told was that gas would vent out through a hole similar to the holes in barrels with gas systems. I wrapped the barrel with paper before firing it, the hot jet would burn right through it if there were a hole. No hole. I did not fire it manually, had a sled with a string. After it passed that, I put it in its stock and fired a 5 shot group. This rifle has at least been fired so I don't think you have any worries.
The hardest thing about an electrolysis bath is finding a correct type battery charger. They apparently don't make them anymore. All new ones are automatic and you need a manual one.