Oooh, go for the pictures!
I have to say you could well be wasting your money. Put it this way...
German Shepherds are protective, bold and discerning, one person dogs, right? Slightly more fussy over their food than other breeds, yes?
And Labradors are soppy dogs who who eat anything? Great family pets, superb with children but so friendly as to be pretty useless at guarding, that's what they say isn't it?
Wanna meet my dogs?
My 3yo purebred German Shepherd is HUGE! He's also the biggest wuss out there. He lurves everybody, is anyone's for a biscuit... because he will eat anything. He has been attacked by a Bassett Hound in the past, didn't bite back just rolled over till I pulled the Bassett off his neck and then ran and hid behind me!
But my Lab cross, who looks 90% pure Lab? Wanna try it? Lay a finger on me and you'll want your fingers back. He doesn't want your child in his face, he won't be their friend but will come and sit with me, glued to my side.
And don't bother offering him a biscuit, he really isn't interested and is very picky about what he eats.
My other GSD doesnt fit the average Shep mould either. :o
So, no matter what the breed mix, there is no guarantee that your pup will conform to a breed type. I'd say that this is true of a good 70 or 80% of the dogs I handle in rescue too. Generally a dog is far more likely to become a product of his environment - YOU will influence your pup's personality far more than his breed mix.
Honestly, if you have money to spare, donate it to a no-kill rescue so they can save more like your pup. Rescue is struggling at the best of times but the run-up to Christmas is the worst for us. Only last week did I post on here of 6 perfectly healthy dogs which were killed in a Wakefield hellhole dog pound for want of homes - and that was just one pound, on one day. A donation to no-kill rescue could have enabled them to take and save some of those dogs.
So, I'll go for the picture please, just so I can say "Ahhhh! Awwww!" mind. Remember, I have a Lab cross goodness knows here and for years before that lived with a Staffie cross I don't have a clue!