So are you saying it is worth applying if one has in excess of the hours requirement but not a Boeing rating (obviously without the 500 hours on type too)?
I can't say for sure either way. If it were me, I would still apply. Worst thing to happen is you waste an hour filling in an application form and you get told you don't meet the requirements. On the other hand you may get an interview and then a job out of it. There are people working here now who didn't meet the requirements on the website.
So what you are saying is to better wait for the 500 hours even though for FO is not a requirement under the minimums or I won't have any problems if I turn in the application with only 30 hours or so short, which I'll be completing the 500 hours in 2 weeks or so.
For the sake of two weeks you'd be better off waiting. If you don't have 500hrs on type you are seen as non-type rated by QR.