I've been using my 1st gen dock too. It fits well enough that it doesn't wiggle at all. I'm guessing he could get one fairly cheap.The first generation dock fits the iPhone 4. It's not a "perfect" fit but I've used mine for 2 months now and it works great. Got it from a US SELLER on eBay and it was brand new OEM for 8 bucks.
I've been using my 1st gen dock too. It fits well enough that it doesn't wiggle at all. I'm guessing he could get one fairly cheap.