They're all more or less the same.
I have the next one down (25LV) in the uk from Amadeal.
https://www.amadeal.co.uk/acatalog/A...-Machine-.html
This would be my next which is the same as that 30:
https://www.amadeal.co.uk/acatalog/V...8.html#SID=432
I would strongly suggest finding one with R8 taper rather than MT3.
I made all my own basic parts manually for X & Y to start with and used DFU1605.
Once they were working (near enough) I made parts for Z using the table automated.
Once Z was fitted up and working properly I went back to X & Y and made more refined parts for it.
It's not too difficult a process but the constant tear downs and rebuilds can get a bit mundane. The 25 was heavy enough. The 30 is almost double, so bear that in mind.