This sounds like fun! Thanks for putting it together. I don't blame you guys for not wanting to come in at 15k or less but I would suggest (if you are looking for a fight) that you come in somewhere reasonable - 25kish? something like that where people can be bothered to climb to you and your escorts can still be higher than you to intercept them. With enough speed and people most of you should get through, but if you don't, hey, it's a memorable way to lose some bomber perks.
If I'm around that night it would be fun to dust off a P-51 and try to escort you.