Deploying / Uploading multiple rdl files

I know there have been several posts on this but I have not seen an answer so I
will ask again...

Is there a way to upload multiple rdl files without using a VS client or
uploading one at a time through the report server admin pages?

Either in script form, or as an msi file would be fine.

I have a client that has be update reports on a regular basis and they do not
have the expertise (if you want to call it that) to run the tools, and things
get lost in translation when they have to upload more than 1 file at a time (
classic ID-10-T errors).    I would like to just provide them with a package to
run...  

Any suggestions?