Need help XPG or XML led on 20mm star

I need to find the cheapest XPG or XML on a 20mm PCB. As I'm modding my first flashlight. Price is paramount. Should i go for XPG or XML?

The driver I'm going to use is 2.7-4.2V 9W 1-Mode Regulated LED Driver Circuit Board 20mm for Flashlight. 1Amp. They are sending it for free.

Cheapest for the XPG is $5.40 with coupon at DD

Cheapest for the xml is $8.79 at KD

Try lck-led for XML sale price.
Edit Can you say”Time Warp?”

For XM-L:

http://www.intl-outdoor.com/index.php?main_page=advanced_search_result&search_in_description=1&keyword=xm-l+20mm&x=0&y=0

And you can select the tint specifically. KD is fine but I wouldnt trust DD on the tint..