Seat Leon 1M: mount new mirrors + question about aluminium wheels

Hi Together, my friend’s Leon may do a bit optically. On the one hand, I like the newer Seat mirror better than the mirrors from the first model years of the 1M (the small + large mirror). Is it easy to replace them? It has a manual mirror adjustment and without mirror heating. Does this new mirror shape even exist manually? What costs do I have to reckon with? Does anyone have a source where I get these cheaply? Second, we would like to have new aluminium rims mo On my Golf V I have 18″, already spoiled by the look. What do you think, rich 17″ or rather 18″ fetch? But I don’t like what needs to be guttered or pulled. On which wheel – tyre combination I have to pay attention, which would be recommended without changing what on the car? Which press depth should I take? Thanks and greeting first Mario