This isn't very encouraging but, with a low F# you're always going to be on the road to ill-defined flopsville. It's hard enough to find a really effective B string.
How I say them...
Wal - wall
Sei - say
Maruszczyk - marooshchick
Babicz - babicz
Mayones - mayonnaise, because it's funnier. But I think it's "my OWN es".
Sadowsky - sadowsky