Webra or Rossi
Since you don't already have and engine, I wouldn't limit my search for just those two. All of the following would be stronger than either of the ones you mentioned.
Rossi 53, YS 45, Jett 50, YS 60, Rossi 61,
I realize they list for more money but you can sometimes get a killer deal. I also realize the YS 60 is a little heavier and the Rossi 61 is significantly heavier, but that can sometimes be overcome.