Diy Multicaster?

Hi, Been lurking for a little while, searching through all that.

Fairly new to multi boxing.

Bout 8-9 months ago i was mucking around with two chars.
A 5 boxing shammy in BG reccomended your site.

Great info!

I'm going to start off tri-boxing. ive got a couple of new compies being sent out. Hopefully arrive tomorrow.
Unfortuantly im in AUS, So i've been looking for the quickest way to get a multicaster setup.

Considered Wireless keyboards but concerned about the delay when broadcasting it to three computers Is this really a big issue?
Been using keyclone to run three instances on the current comp.
But i'd prefer to do it via hardware.

Has anyone tried to make their own multicaster?
I'm grabbing a KVM from a shop down here and ill rip that up and see whats inside while im waiting for vetra.
But if anyones attempted or done this before anything you want to point out?

Might be a stupid question but i havent found much info short of Vetra selling them. Still waiting on the order quote from vetra.
I'll probably end up grabbing it from Vetra, but ill buy what i need for a 5 box as thats the eventual plan.