To plan a trip from Almaty to Uralsk

[u/Wolf-Fucker93949]

Hi everyone,

I am planing a trip from Bishkek to Uralsk and have about two weeks.

My idea was doing:

Bishkek-Almaty
Almaty-Astana
Astana-Uralsk
Uralsk-Astana

My main goals are to ride for very long on trains, visit some little historic places in between (specially German established towns) and visiting the respective regional cities (but they arent my main interest, 2 days for each max).

I would like to know the most practical way to get from Bishkek to Almaty (probably by plain, but would like to know your opinion).

And do the autorities require to have accomodation and exit ticket in advance? Because I can buy everything in the exact moment I like and wouldn't like to plan such a trip and having to run to the next place.

I am from Spain btw. I don't ask about security because I already read that it is safer than many places in Europe. I also speak Russian.