I don't particularly encourage mini-BUDs below 4' diameter. However ...
Iceberg had
some success on an old elliptical Primestar 84e (about 40 inches wide).
Linuxman did have good results on a 1 meter round dish (about 40 inches).
Here is Linuxman's
list of birds. (
additional birds after some tweaking)
The conical scalar would help some, but it matches better a round dish.
So, the jury is out on how well it'd work.
Don't expect anything special on Ku, though.
If you'd find one of those big DirecTV dishes I keep going on about, that would probably be a better choice.
A 4' dish would be better yet.
Next would be a 4' or 6' prime focus dish.
Or, what about a real BUD?
Probably pick up a 7 or 8' mesh up in California, just for the taking.