Adding Aircon to a TX3 Turbo

[SkyWraith]

I'm somewhat new to this so don't know yet, I have an opportunity to purchase a KF TX3 Turbo that doesn't have aircon.

I'm wondering it it's possible, or practical & cost effective, to add aircon to this car - or would it be so expensive that I'd be better off hunting for one with aircon already?

Thanks