One of us will look very silly on January 20th.
There is a hard deadline of January 20th. At that point, the courts have absolutely no jurisdiction. The soft deadlines have already passed, but you can claim that the Supreme Court will make a bizarre exception for your case, but even bizarre exceptions will not do it after January 20th.
The Supreme Court will either rule for or against the appeal.
I strongly doubt it. For a case, first you need evidence presented in court... Can you see why I am not worried? Remember, internet rumors and self proclaimed experts are not considered evidence.
OK, lets say you get some evidence by tomorrow, even though you have not found any evidence up to now. I strongly doubt you will, but for argument sake lets say you do. You present it in one day (hard to imagine, but again argument sake). That is four weeks after the election, so you need to give Democrats more time to respond. A general rule of thumb is twice as long, or in this case 8 weeks. You have to add 2 weeks in for Christmas. So you get a decision by February... And then appeal it to the Supreme Court. Remember the Supreme Court does not take evidence, so you need the original court to take evidence.
That puts you in either February or March... Well after January 20th. The Constitution is absolute in stating the Supreme Court has no say in a sitting President, so the Supreme Court will reject the case because of no jurisdiction.
See what I mean about a soft deadline. You may argue that maybe all the courts will make an exception, but why would they? An exception means evidence goes un-cross-examined, so can not be verified. The delays are the Republicans fault, so the Republicans have to pay the price.
And that is all assuming that Republicans finally find some evidence... Which so far they have not.