@Saaniya, I am a game fowl person but not a vet. Removing such a large comb is beyond by experience. Combs less than half that size are problematic when comes to bleeding. Problematic, in that birds can be lost through bleeding out or more particularly shock.
If you can keep him away from extreme cold and otherwise keep the comb in good health, it is better to leave the comb alone.
A vet could do job by not dubbing as close as done typically. A clamp could be placed at base of comb where everything above it is cut off. The astringent is liberally applied to exposed blood vessels to ensure clotting before complete removal of the clamp.
Wattles do not seem to be all that difficult to manage on that bird.
If you can keep him away from extreme cold and otherwise keep the comb in good health, it is better to leave the comb alone.
A vet could do job by not dubbing as close as done typically. A clamp could be placed at base of comb where everything above it is cut off. The astringent is liberally applied to exposed blood vessels to ensure clotting before complete removal of the clamp.
Wattles do not seem to be all that difficult to manage on that bird.