He has promised at least one (1) affordable house, and to make everyone's taxes but yours go up. Seems like a solid choice

His plan is to move to the constituency and serve seriously as an MP. Whether he does or does not do the whole thing in costume is another question

The constituency gets a significant upgrade over their current mp.

They can force a by-election through various means, like a recall, for example.

Then he goes to parliament. Though the question is if he can keep his outfit.