Best / Cheapest place to buy 2.2kw spindle & vfd

Good Day All.

I have been using a cheap B&Q own brand 1.1kw wood router, with a SuperPID2, and has been fine for my needs upto now.

With using the SuperPID2 I have a RPM range of 5000-30,000.

Most of the time I only use am rpm rage of 5000-15,000.

But I am now starting to use this to cut aluminium but I am finding the runout to be an issue.

So am looking to upgrade from my 1.1kw router upto a 2.2kw watercooled spindle.

As far as I know if I go for a spindle with vfd I have to manualy adjust the spindle speed or it is possible to have control via mach3, with extra hardware.

So I have two questions.

(1) Where is the best / cheapest place to buy a 2.2kw water cooled spindle & vfd.

(2) What is needed to be able to use the spindle in closed loop pid, like I am with my router and the SuperPID2.

Thanks for your time.

Best Regards.