Hello,
I'm an very experienced MS Access developer. I've created databases like the one you've requested for a number of companies worldwide including Microsoft, lululemon and major UK banks. I only recently created a quoting database for a road services company in Australia which included invoicing, margins, product categories, and mail merge functionality to send the quotations to clients.
Screenshots of my previous work can be found in my freelancer profile but I am happy to provide more screenshots of specific work on request.
Thanks,
Adam