I'm thinking of either building one or buying a kit. Seems easy enough to build from scratch but why re-invent the wheel and possibly make the same mistakes as early builders.
Since funds are very limited I'd like to hear from experience how good the cheaper models are, what designs to avoid or at least what to look out for, and reputable sources. I can handle assembly and troubleshooting so a bit of work is not a problem. I just need something for small volume small parts as I'm not doing too well with casting.