I regret that I have never seen "Wacko," or even heard of it until you mentioned it. It sounds like a film I would love regardless of whether the jokes are funny – and if they're not, I might love it even more for the corniness of it.
I may have spoken too soon about "Get Crazy." I'm not finding the VHS anywhere in my collection, and if I indeed had it I'd probably have a better memory of it. I definitely have the soundtrack on vinyl, though.
Those films remind me of some of the madcap rock 'n' roll flicks of the '80s like "Roadie," "Tapeheads" and "Weird Al" Yankovic's "UHF." Those films were less obscure but just as nutty.
Thanks for the link. Unfortunately those trailers do not ring a bell, but I must seek them out, especially "Get Crazy." The Paul Bartel films are wonderfully warped as well.
It's not quite in the same league because the comedy is unintentional, but have you seen "The Apple"? It's notorious as a "bad" film, but I think it's delightful:
Thanks very much for the link to "Wacko," and enjoy "The Apple"!