Hi Sir,
I read your project details and from it I can tell you that this job can be done smoothly, you want to make the 2 SSDs hard drives to be seen as 1 hard on your system which is easy using logical drives, tell me which version you want on debian distribution and we can go through this .
I Have enough experience dealing with Linux administration so this shall be done with no effort
Contact me to share more of the project and discuss all the details you want in your project.
Regards,
Albert Samir