Certification of a sim

Hello,We are planning to build a FNPT1 category Cessna 172R simulator in Estonia and we are planning to get JAA certification for it. The instruments we want to use are SimKits ones and the software is currently planned to be MSFS. Some people are saying that it doesn't, at least in USA, qualify to operate a training device, but at least from JAA docs and talks with professionals we haven't found anything that blocks running a certificated sim with Microsoft FS software. The requirements seem to meet the possibilities of MSFS. They are anyway saying that for certifying, a software must run in the sim for 2-3 hours that prints out graphs of testing results of software. Now I would like to hear from someone who could give me some good advice on certifying selfmade sim in Europe, finding or making the checking software for MSFS or suggestions of other base software that could run SimKits hardware.Thank you really very much!