Rong Fu RF 45 vs RF 31 CNC - Help!

I am trying to decide between the RongFu RF45 and RF31 with CNC.

Could anyone guide me on this?

Some of the issues are:

1. Good CNC matched systems - Servos controllers boards and software. I
know that Microkinetics makes one for the RF 31.

2. RF45 has 1HP rather than the 2HP of the RF 31. However it has
dovetails, a gearhead and a tilting head. Is the 1HP too low for such a
machine? For steel ? Is CNC control available for the tilting head (5th
axis?)?

Thanks.
Andy