depending on how soon your getting your bp i would say just order a zoomed uth online if your having trouble finding one nearby.
its what most bp owners recommend the most...

but i dont see why a exo terra desert heat mat wouldnt work. just make sure you regulate the uth so it doesnt cause any damage to your bp..

good to see someone is doing research before getting their bp. I did about a years worth of research (not saying you need that much) before i got mine and i still have questions lol