I sat down with Mike Waller approx ten years ago when I was considering building a cat. He struck me as a very knowledgeable guy.
My first
boat was a tiki 31, I still have a soft spot for Wharrams but it would need to be a very big Wharram for me to have another, just not enough living room for me. The lashings aren't an issue, they have proven themselves countless times, also no bridgedeck slamming with Wharrams, they can hobby horse quite abit. A well built Wharram can be a very
seaworthy craft, I've seen a number of not well built Wharrams. Also I think you could probably buy one cheaper than you can build one. I've seen them for as low as 60k.
I'd chose the Mike Waller design, a more modern design and Imo a better
live aboard. Although a nice tiki 38 or 46 are lovely looking to me, but that's very subjective.