My understanding is that the 3.5cm/1.8 W-Nikkor is similar to the Leitz 35mm Summicron from the same era, so maybe that or the 35/2 Konica Hexanon-L (pre UC), another 'cron-like lens, would be a better bet? Doubt that they'll be any less expensive than the W-Nikkor in LTM, though.
Yeah, the 1.8 nikkor is the least expensive, but also the least ergonomic of the bunch. The thing is that I don't really need anything. I'm not going to rush it.