Thank you both very much for your considered responses!
The tailgate works fine manually, might try to lubricate then pop to the dealer if no joy.
There are some quite bad scratches elsewhere on th bonnet anyway which is why I considered a new one, but a respray may work.
Thanks for the iPod advice, I have bluetooth anyway so wanted to avoid the parrot, prefer an OEM look so ill check out the VAIS, thanks. I do have an SE w/ Nav, but I saw a 2007 SE Nav w/ ML at a dealer, but as you say must be down to the fact that mines an 05. I wonder how hard it'd be to swap out the Nav and CD deck with a post-07 one with audio button and new graphics? I know I still won't have ML but ill see if anyone has any advice on speakers, to be fair I was slightly glad I didn't have the ML system, I used to have a Prius with JBL and an Audi A5 with Bang and Olufsen and the centre dash speakers on those systems made the rear view mirror shake/distort what you saw, even at low volume, very distracting.
Alloys - unfortunately, the plank of a previous owner obviously had the cheapest refurb ever, as they've basically just been painted silver. They look fine, but they never shine/sparkle even when washed, they're always slightly matt in texture and they have lost that slightly chrome look of the factory finish. You can also still see some pitting through the paint. Beware of cheap refurbs!!
Thanks guys, appreciate it!