Removing roof

It’s a crap ton of work to do it anything close to right. The chassis stiffening is significant, most of the interior parts and trim is different, and if you want the convertible parts they’re hard to find or obscenely expensive.

They either end up looking like Joe Dirt built them, or they take a ton of work and cost a lot of money. And resale, forget it. Even if you do it well, most folks won’t touch them because they’re rarely done right and doing it wrong requires a ton of work to fix.

My Challenger needs roof structure replacement and a new skin, and not for one second would I consider making it a convertible. Replacing the hardtop structure and re-skinning it is significantly easier and cheaper.