There are other, possibly better options if you want Topre switches - the Leopold FC660M, the HHKB Professional and the Cooler Master Novatouch. The latter has the advantage of using Cherry MX compatible stems, if you ever want to change the keycaps.
Personally, I'm of the opinion that even tenkeyless keyboards are too wide for most right-handed users - unless you're very broad-shouldered, you'll either have to skew the keyboard to the left or use your mouse too far to the right. 60% and 68% keyboards offer real ergonomic benefits, by simple merit of being narrower.
I'm in the same boat, I find these benefits of a 60% keyboard to be well worth it. Desk space, and a large mouse pad seem to pay dividends, particularly with multiple monitors.
If you do have broad shoulders however, narrower keyboards are rather painful to use. Right now, I'm using a Logitech G710+, which is a full-sized IBM-syle keyboard, with an extra row of garbage buttons on the left side. If my left hand is in line so it is comfortable and inline with my shoulder while on the asdf keys, my right hand wants to be half off the right side of the numpad. Makes typing left-handed and mousing right-handed very comfortable, but typing with both hands on the homerow somewhat cramped. It'd be interesting to try a keyboard that had the keys split apart so that asdf was in line with one shoulder and jkl; in line with the other.
Personally, I'm of the opinion that even tenkeyless keyboards are too wide for most right-handed users - unless you're very broad-shouldered, you'll either have to skew the keyboard to the left or use your mouse too far to the right. 60% and 68% keyboards offer real ergonomic benefits, by simple merit of being narrower.