All of the quoted flashlights have over-bloated claims for lumens. Divide their claimed outputs by a factor of three and that would probably be closer to the truth. While I might purchase one to use as a host for modding, I would not recommend a stock Ultrafire to anyone.
And all of those flashlights require li-ion batteries. Are you (or is he) aware of how to safely manage such batteries?
For your enlightenment, please review the following discussions:
Impress him with this one: [Thorfire S50 XHP50 2000 lumens 2x18650]
Stock, it’s great. “[Review]”:[review] Thorfire S50 (39 pics)
With a simple soldering modification, it’s a beast. [Simple mod]
Request a discount code from “[Freebe]”:ENEDED or [M4D M4x] .
That’s assuming you can wait a month for the flashlight to be re-stocked, plus another two weeks to a month for delivery overseas.
Under $50.