Yes—buying a large-format camera used is generally a sensible option, because many of these cameras were carefully owned and often remain in excellent condition. Besides eBay, try used dealers such as KEH, local camera stores with consignment sections, and local camera clubs where owners may know of cameras for sale.

For new wood/brass cameras, the closest equivalent mentioned is Wista. If you want a wooden field camera but can live without brass hardware, other names brought up were Ebony, Horseman, and Shen Hao. If wood is less important than overall reputation, Linhof was also recommended.

A used kit can be especially attractive because it may include hard-to-remember accessories that add up quickly if bought separately. For 4x5, also consider the wider system cost and practicality: lens board compatibility, lens availability, a sturdy tripod, meter/viewing accessories, sheet film and processing availability, and how you'll scan or otherwise handle the negatives or slides.

So: a used Tachihara is a reasonable choice if it’s in good condition, and Wista is the main currently made wood/brass alternative noted here.