Please don't ever think you're going to get a fair deal in RAM. Past problems involved accommodation. Certainly more than US$1000 pm, transport included in contract but only provided between Casa Mhd V and Petit Aeroport d'Anfa. Difficult to get taxi at 2am after a week flying around the Sahara. Your contract will be with Rishworth. If they refuse to be directly responsible for a penalty payment for RAM failure to perform, I would stay right away from them.
Rishworth will likely be actually responsible for your salary, but if RAM is responsible for allowances, who is to say that an expat will get flights with good allowances, and if they did, will those amounts, and the accommodation allowance be promptly paid, if at all? Maybe you will get flights where the normal allowance would be $1000, but you are stuck with $500?
Flight duty time limitations were dangerous. Rest period commenced at engine shutdown and finished at engine start. 12 hours on, 7 hours off could result in 4 hours actual in an overnight hotel in Bamako.
The locals are used to that, but do not take kindly to 5 years without rec leave. This is the only reason they tolerate expats.
It would be real handy if you are fluent in French. If you speak ME Arabic, don't expect to be understood.
Poor regard for minimum altitudes with made up tracking during domestic approaches.
I suggest not depositing funds in a bank in Casa. They think it is their money, not yours.
If you are really desperate, go for it, but with eyes open and a bag packed.
It might be older information, but it is first hand. My final suggestion would be that all applicants PM each other and agree to insist a Rishworth contract be US$10K pm paid directly by them, without any of the fiddly bits. The locals are probably ready to strike due workload and no leave.