[MatjazO]

For hiking I use m43 body with couple of small fast primes. GX80, 12/2 and 45/1,8. Rougly equivalent to A7 kit Klaus desribed above, at half the weight. Of course, trade-off is less resolution and no zoom, two focal lenghts only. Zooming with foot works with primes at “standard” view angles, for me at least. If needed, there are 20/1,7 or 35-100.

Does not answer original q with low budget expectation, though.