I'm not sure that this is conveniently possible without concatenating the disk images back together to a whole. Fuse allows you to export your own filesystem to Linux, but it does so at a much higher level.

If you can find out how to create a device (driver) on your OS and have that driver call Perl for the operations, then supplying the appropriate data from the raid files is easy.

If you are able to reconstruct the disk image as one single file, by copying the appropriate stripes from the disk images, then you don't need Perl, as you can mount a file (at least under Linux) just like a real disk using the "loopback" device.