Each of the documents does add value. The company is not that large but we have a product range of 2000+ I have structured our QMS so that we start with the QM, then down to procedures, then down to work instructions and then down to control documents. Each product has between 1 and 8 different control documents!!! That takes some control. We do have a very good QMS software package that we are updating this week. Hopefully we wont lose anything.
For each document there is a page number, document reference and document/page issue, oh and I only have the front page stamped

We actually use a Dymo lable printer for our controlled document status. A seperate issue but we moved to physical stickers to avoid an NCR due to the fact we have a colour photocopier that is so good the usual "Controlled Document If Printed In Red" would no longer do. This way controlled documents have the embose of the sticker... copies do not!!
Well, it does sound organized. A couple things jumped out at me. Even though the work is completed, you still have the task of managing all this.
Perhaps you don't need a procedure, work instructions and multiple control documents for each product. Perhaps some of that can be folded together. Particularly, can there be ONE control document for each product, and everything about that product is contained in that one document. Then, it is clear which document to go to if someone has a question, and you only have to change one document when there is a change. A single 8 page document is easier to manage than eight 1 page documents.
Can some of the control documents address multiple similar products, rather than just individually?
Can more of them be used electronically off the server? Where this is possible, controlling them becomes much easier. No worries about the rev level, status and all those other things you discussed.
I am puzzled by the dymo label maker. I would think a way could be found to print directly onto the document, if you have to print it.
I admire your work ethic, but I think you can reduce some of the work involved. From far away, it sounds like it effectively gets the job done, but perhaps you are trying too hard. This often has the effect that other people fear doc control and try to work around it.
I work toward a model where doc control is fairly transparent and automatic. It is actually fairly easy to do. many companies are close.