You can always try this:
http://www.westcoastshaving.com/Feather-Artist-Club-RG-Japanese-Razor_p_799.html
http://www.westcoastshaving.com/Feather-Artist-Club-RG-Japanese-Razor_p_799.html
I bought years ago for $22. With the current exchange rates, it's probably closer to $28.
I've tried a Parker SR1, which took about the same, and is noticeably heavier than the sanguine, then moved on to the non-folding Artist Club SS. When you get used to them, they can all give fantastic shaves, but the Feather is miles ahead of the others in terms of quality (imo).
+1 and so is the Kai Captain
Out of curiosity, what other Shavettes have you tried? Maintaining a Straight is not for everyone, I think mine went rustyparker sr21 is my choice, it holds the blade well and doesn't break the bank!!, i can't see the point of spending much more on a replaceable blade razor, you may as we bite the bullet and go for a traditional straight!!