360 magnum. 1 piston lower in cylinder??

I did re-read that article. Yeah.....028" Head gasket may be pushing it. In fact I am a little concerned with the CR in the 10.5 range especially with iron heads. May be looking at .050" h.g. instead. I want to run this on 91 octane. I was under the impression that they were down in the cylinder. Oops. Really stinks to be limited on choices for Magnum pistons and really don't want to spend $650 on forged ICONS especially at my horsepower level.
I removed one of my pistons from the rod the other day and will weigh it tomorrow. If I go with KB107's maybe I can remove some metal from under the piston head to get within 20 grams of stock.
Another option is to play around with pin weight but good luck getting that info. Not too worried about the rings. They should be close to the same weight.
No cam selected yet but will be checking with Comp, Lunati and grinders for suggestions. That will be happening soon. May ask here as well. Thanks again.