Hi,
I'm getting lost in the choice of machine to buy/build. I currently have built an MPCNC with a Makita router as spindle. I'm not happy with it so want to upgrade. I am however caught between two conflicting requirements:

1. Needing something of the size of 1m square Workbee, or Lead cnc, for woodwork and arty stuff,

2. The need to machine aluminum to a reasonable standard of accuracy (say .02mm).

With limited funds as I'm retired, I need to be careful with choice.

Are the machines above capable for milling aluminum (subject to correct speeds/feeds).

As an alternative, would a chinese 6040 be better for aluminum, and I just restrict my woodwork stuff?

Sooo many choices to make, with no ability to actually see any of these things in the flesh. Need help from people with experience.

TIA
Gary