K1 is a single entry visa good for 90 days so as long as you marry and file within the 90 days you can wait.
Do you have a joint sponsor?
Have you read who is eligible for a fee waiver?
I have been a member here for more than 16 years and have seen no end of B applications, must be thousands. When I applied for my my B I was young(er) and naive. Anyway why are they not paying their own way? I have never paid for my relatives to visit nor would it have occurred to any of us that I should do so.
You seemed to have ticked many of the boxes to ensure they do not obtain Tourist Visas.
I must be doing something wrong, none of my relatives seem to want to cover all my costs.
She will make her money through endorsements, not playing Basketball for the Dump.
Now apparently the other Ladies are not happy she will be earning a lot more than they do collectively.
If you are caught and deported well that is a different world of hurt.
And if you are a CO and see someone who accidentally stayed a couple of days versus someone who left just before a ban kicked in what would you think?