In terms of the question about malt liquor being any good, well, all I can say is I have not had it in many years and even then it was not among my first choices of beers.
But then again tastes certainly vary and mine has changed with age, to the point where I rarely drink beers at all, and then concentrate on heavier beers, or preferably ales, when I do.
I think one can still buy Colt 45 routinely at our local supermarkets, but am rarely in the beer section so am not sure.
If you can't find it at your local stores, there really is nothing that is quite the same that I can think of.
Sorry but I hope you and your brother have a very happy Thanksgiving anyway.