Most of the parts have had several revisions. If/When you break a part and don’t want to upgrade, post a pic and I’ll do my best to help you out.
Upgrading is the best option though. So far I have not updated a part just for looks. I only do it if it provides a functional benefit. If you have a part break that is a very good reason to replace it with a better version. I understand that can be a lot of work for a first gen middle part, but the current middle is many many times more rigid and square. Same goes for the rest of the parts.