We can definitely get you scans before shipping your order. Please note that we are only able to get scans of cards valued over $100 for NM condition at this time. So if a card is $50 at good (G) condition but is priced at over $100 for the near mint (NM) version of the card we'll be able to get you scans.
Please just place an order for the card or cards that you’re interested in, include a note in the customer comments that you’d like a scan, and then open a ticket containing your order number requesting the scan. We'll email you the scans of the cards as soon as possible, and can then remove any cards from your order that you're not interested in after you've looked at the scans.