Regarding the non matching maguras, strip and spray! Nice and easy, and they are small enough with complex enough surface to be able to spray without being a master at the art.
Who knows? Perhaps this is a fairly generic Ti frame that Boris was able to knock up for less. I guess not having the wishbone seatstay would say a few quid.
I agree it's all a bit odd though, the design in the article is comparable to the design of the steel Fox's (the one that looked like it shared a frame with early Orange Clockworks).