If you want something to look nice, and you have the budget, a skilled and open minded cabinet shop might be your best bet. Make sure they understand that it has to be designed to accommodate a snake, and that there are design requirements, and material restrictions.
If there are pre-made cabinets which suit your tastes, you could modify it to suit the needs of your JCP. If you do this, you need to take into account all of the materials and finishes that are used, and make sure it's safe. Also it might be tricky to modify to suit your snake, and still retain the tasteful appearance. Of course you can't sacrifice functionality or your animal's safety to suit appearance.
I'm actually in a similar situation. After looking at all of the options out there I haven't found anything that is both a perfectly functional enclosure, as well as suits my furniture tastes. Therefore I've decided to design and build it myself. There are plenty of great enclosures out there from a functionality stand point, however in my opinion over 95% of them are ugly and would not fit in with anyone's furniture beyond a laboratory, grandma's antiques, or cheap walmart pick ups. That's not an insult to the cage industry, but that's how it is at this point. If you're reading this, and you're an enclosure designer. Here it is: You're enclosures are ugly. If you don't think so, let's talk. :-)