Yeah, it's an imperial pilsner. It can be pretty good if you age it for a bit.
My home brew club once made a group brewed Imperial Pils where we used all pilsner malt, hallertauer, and fermentis lager yeast S-23.
We doughed in with cheap beer. Heated to 165F. It was a mix of Bud, Miller, Coors, Natural Light, Bush Light, and Black Label. Well over 100 cans of beer got poured into the hot liquor tank. We also sparged with it too. It was enough to make a 1.090 beer that could net a 15 batch. That beer is kinda like water. Right? We added gypsum or calcium chloride to adjust the pH if my memory is correct...
BTW boiling beer stinks to high heaven.
Anyhow, it turned out pretty good. Surprisingly.
We did a 90 minute boil to remove DMS and did the diacetyl rest after lagering.
So it's possible. You need some patience at this point.
It also sounds like you had money burning a hole in your pocket.