I am on my third P6000s & have fitted auto start to all of them.
If you need any tips just ask.
Third generator

and you're still buying the same make

Mine's been working since 1978 and that's me new one, me 1969 is still going fine

Yes buy yours is noise as a noisy thing on noisy day.
One was new, one was used & one was a pile of spares before I got it & rebulit it.
Each one does over 4000 hours & at the end they still work but the quality of elec goes down as the govenor looses spec.
All of them are still in use but for different jobs.