Take advantage of the opportunity , and upgrade the carb.
Soaking it should get it loose. The paper will soften.
When replacing the throttle plates , you can use some thread locker, and grind down the screws to not stick out so much.
The idle system is sensitive. You do not want holes in the throttle plates. Demon carbs had real nice thin throttle plates and short screws. I heard stories of people drilling those. Oops.