I got 15 gallons (ish) of second runnings from the local brewery when they were making their doppelbock, and we boiled up three batches with our own hops. We used a very similar hop schedule (an ounce of Northern Brewer hops @ start of boil, half an ounce of Hallertau for flavor, and another half ounce at flameout). Overall it came out a little too harsh, and more bitter than style for a bock. If I did it again I'd pick a different bittering hop for sure, and depending what I wanted (a bock vs a dunkel) I'd consider backing off or eliminating the flavor or aroma hops).
The one batch with WLP-810 wasn't that great, but we used a pack of US-05 and fermented the second batch as an ale and it came out much better. It took a couple months to mellow out but the slight fruitiness from the ale yeast really made for a good beer.
Unfortunately I'm not sure what the grist was, but probably something fairly standard. I would make the ale version again if I knew I could duplicate it.
I also made a Vienna lager-type ale with a German Ale yeast and that came out wonderful.