Plug'n'Play Replacement Motors for the GT?

Hi there,
after years of use I decided to upgrade the the motors of my GT (AT wheels, riding offroad only).

I am NOT looking for higher torque or more top speed. Since I'll have to replace the motors sooner or later and the original ones are quite expensive, I am just looking for some affordable "plug'n'play" replacement motors that

- provide at least the same torque / speed / range as the originals
- aren't too expensive
- are "plug'n'play" (come with the correct size / shaft / mount holes / plugs, do not require any other parts to be changed)

Are there any motors out there that fit these conditions?

After some research I found these:

■ 5065 BLDS Outrunner and ■ Racerstar BR5065

However, there are still some questions for me:

1. Are they really "plug'n'play" (the D-shaft variant) or will they need any other parts to be changed as well?

2. Should I prefer 140kv or 200kv? I am not looking for MORE torque or top speed but they also shouldn't perform worse than the originals. I am using the big AT wheels, driving off-road mostly, so I guess the 140kv would be the better option in terms of battery range and torque?

Thanks for helping