[Closed] What to replace my On One Inbred 29er SS frame with?

So after cleaning my Inbred after a MTB marathon yesterday I noticed that the seat stays have a small crack on both sides just after the gusset. Oh well another Inbred bites the dust (that'll be number 5). So now I am looking for something a little more upmarket to replace the frame with but without being too spendy. I was thinking about a Singular Swift but it has been pointed out to me that the new frames have a much longer chain stay to incorporate the 29+ wheels. So I am looking for something that is similar to the Inbred that I can use for general messing about on in winter but also light enough to race on but perhaps a slightly slacker geometery than the Inbred. What are my options? Already looked at a Karate Monkey but I am non plussed by them ..not sure exactly why. Suggestions please

Edit; Picture of Inbred to give idea of set up
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