I currently have a fixed ex Sky dish and a motorised dish connected to a Vu+Solo 4k. The wife mentioned today how tatty the Sky dish looks, it's been up 20+ years and works so doesn't bother me but she'd like it replacing with a nice new one. So while replacing the dish I think it would make sense to replace the LNB with a unicable one. Am I right in thinking I don't need to change the coax to enjoy the unicable features?

Also is changing the dish a straightforward DIY job?

TIA