Strange. We were there only two weeks ago and he offered us the topo to take a photo of. (It's not actually a hard copy to buy - just a one-off sheet that you can take a photo of.) But the set-up there does seem a bit random to say the least!
If you're still stuck for a topo PM me - there's a good chance we've still got the photo on the phone and I'll try and find it to send you.