Need Help! Router for Alu and some wood work, need some opinions.

I was planning on getting the following:
Router Kit
NC Router Kits Engrave Mill Plasma Travel 24"x49" Commercial Milling
CNC Router Kits Engrave Mill Plasma Travel 24"x49" Commercial Milling | eBay

i will not get the stepper and control board only the frame and the linear guides. Since this machine has linear guides it looks stable to me to cut aluminium, i am not looking in doing crazy DOC i am OK with doing more steps or if the cuts take longer.

For Stepper i wanted to get the following from Automation Technology Inc
* NEMA 23 Closed Loop Stepper Motor System-Hybrid Servo Kit, 32 bit DSP Based, for all 3 axis
* Smooth Stepper Ethernet (already have it at home)
* Mach 3 (already have)

As router the Hitachi m12vc with a Super PID V2 speed controller.
Then also precision collects from here Precision solid carbide tools for woodworking and metal forming.

My question is, do i make the right choice on the router itself? I have about $2000 - $2500 to spend on the router (frame) alone, but like the option of the linear rails. If needed i can always reinforce the frame with some more parallel extrusion profiles.

Any suggestions are welcome.