What level of abstraction are you looking for? Can you set up each item as a web page and just use the Perl script to mail inquiries? Or do you want something that generates a page on the fly from a text file of item data and also sends inquiries? Or do you need a whole database and forms that let you add / edit / remove items?

Both of the first two are easy, though you're not likely to find canned scripts that do exactly what you want. Better in my opinion to pay someone $50-$100 and let them set things up for you.