Well, it's a tight 1 hour connection which could be problematic anywhere if your inbound is delayed. I don't know how quick the transit process is at KRT because my transit was in and out on the same plane, so I wasn't concerned about delays, and RJ let me stay on the plane while it was on the ground.

You should definitely find out if you can be checked in for the ET flight when you check-in with MS in either AMM or CAI. If not, you will probably not meet minimum check-in time at KRT. When I was in AMM, RJ told me they could not check me in for their own flight KRT-AMM, and IIRC somebody said that it was a Sudanese Government requirement, as opposed to some limitation of RJ's system. They had to call their station manager in KRT and ask him to check me in and print my BP and give it to me when I arrived at KRT. Not sure that MS/ET would be able to do that for you.

Good luck!