Names Are the Easy Part
I wouldn't let names become a stumbling block. One thing I've done is name characters with names I know I will replace, one per letter. Alan, Bob, Carolyn, Dierdre, Emil... Not one name right for the character, but enough that I can keep them straight as I write.
Then when you think up just the right name, Search and Replace makes it easy. (Although you might want to keep a 'program' telling you that Alan became Omri, Bob turned into Senor Montenegro, Carolyn is now Beatrice, etc.)
Now start writing--remember, the first draft is supposed to be awful. Just get it done. You can make it nice later.
Maryn