Thanks Harry! Yeah the demisters will certainly prove useful but to be honest I've hardly ever used the demister in any of my previous cars. Also, I use a product from "Nanolex" and they have a glass sealant which I have applied on my front windshield. The sealants nanotechnology makes the rain/water simply bead and ‘slip off’. So basically, when it rains whilst you're driving, you don't even need to use the wipers. It's what I'll be also using for the rear glass windshield when I replace it with a tan soft top.
Here's a video of it in action on my old Golf R.
I'll be dedicating a full day to detail the MX-5 very soon and will document the process. Will be doing full paint correction with wax and polish and then will be applying the Gyeon Q2 MOHS paint protection sealant along with Gyeon Q2 antifog for the windshield as well as re-applying Gyeon Q2 View which should be the same as the Nanolex product.
Re: the part, understandable mate! All good. Hopefully I get it soon because I'll be looking to install it in the next few weeks or so!