Thank you for your helpful replies, particularly jarm for pointing out that the models are untextured (I hadn't realised), and to Carcinogen for mentioning the animal collection. I've placed my order for $100.66 - mission accomplished!

One of the reasons I asked for assistance was because the 3DScience website wasn't cooperating very well with my browser last time I went there, but it didn't seem so bad today. It's still a bit alarming moving among prices like that.

And to Acadia may I offer a proverb, which I think is Spanish, or possibly Greek:
"Poor men are full of schemes..."