Coolant recovery tank on fender

I'll repeat how much I like my recovery bottle. It's the smaller hex shaped aftermarket kit from Advance. It's hi-lo markings are perfect for the volume displacement of my 22 inch radiator.
It's mounted beside the radiator where factory would have placed it. It's milking white plastic is clear enough so at a glance I get info on cooling system condition. If I see a change in it normal levels or oil in it, I'll know there is a problem.
Of all the things I've done to my '67 , ranked on a scale of 1->10, install of this little bottle hits a solid 8.