I mean, why not? He's a character around this time period.
Just have a single hilt like this: https://i.etsystatic.com/7192165/r/il/860efe/1042926687/il_fullxfull.1042926687_4tm9.jpg
And for the double bladed variant, I know that Exar Kun's double bladed luightsaber was only as long as a normal one but with a little more added on, but I don't think that anyone will mind if you extend it some more.
So, what do you think?