Just an update that US Cartool is still up and running and doing fine. I called and left another message yesterday morning. John called me back in the afternoon apologizing for not getting back to me for over 2 weeks. Said they have been open and in operation, but so far behind that they are not answering the phones. Not sure if they just lost the person manning the phones or what.
Anyway, I asked him about the lower radiator support being available without the holes. He said no problem, but it really wouldn't do much for me unless I was installing a coil over suspension. His recommendation instead was to use the inner fender braces and more importantly, to dig out the seam sealer and weld the joint between the floor pan and cowl. I have never heard of welding there, but he says that there is quite a bit of flex in that area. Decided to follow his recommendation. Went to order the braces, and guess what, out of stock. Called back and left another message and he called me right back this time. 2-3 weeks until another batch of braces will be made....