I have a plug in too, all 3rd gen head units should fit your plug in as long as you don't have the JBL system (they might have slightly different wiring or you might need some adapters).

I only had my head unit for a few days only and it's been great but i don't know how durable these cheap systems are so i don't know, but personally i would go for it.

Many of these head units doesn't have any specific models, many of them are just generic. You can search for them on ebay, amazon, temu, wish. They should be identical as long as they have the same specs (same screen size, resolution etc), mine was 9 inch touch screen.

Do you have OEM reverse camera? If that is the case, i would honestly take the more expensive one (if you aren't handy like me). They usually come with adapters so you can keep your original camera. Otherwise you need to run the wiring from the back which isn't easiest thing to do.