It's definitely worth taking a look around before you jump in. I have a Proxxon MF70 that I converted myself. It's a great little machine. Very capable but definitely little. I'd recommend it of you're sure that it'll be big enough. I extended my Y axis but the working area is still 150 x 82mm. When you have people on here talking about their machines in metres you realise how tiny that is. On the plus side it can just sit on a desk.
https://0xfred.wordpress.com/category/cnc/mf70/

I ended up wanting something bigger so went up to a CNC6040. A lot more trouble to get working.

If you do decide on a MF70 then let me know as I will be selling mine. Can even include a PC suited to running Mach3 if needed. And if you're anywhere near Redhill in Surrey you're welcome to check it out to see if it would suit you.