Customized openwrt for TP-Link MR3220 version 1.2

Hello,

I have an old TP-Link MR3220 version 1.2 and I am planning to run a piratebox on it. The only problem that I have is that there is no customized stable openwrt for my MR3220 on the HowTo's Section (http://stable.openwrt.piratebox.de/auto/). May I request a copy of this customized stable openwrt for my MR3220 so that I can run piratebox on it. Thank you so much.

Regards,

Snipy