[overcoil]

I haven't inspected your garage jack but I used to use a 1.5 ton rated unit on my Mercedes - but don't place any part of your body under the car!
I'm not visualizing your plan for the jack-stand, I personally don't use rear-diff or any front central suspension or frame or cradle to lift the front, particularly with a 1.5 ton rated unit.

I also recommend jack pad tools - the accessory that snaps into the cars rubber lift pad point and protects your jack from ripping the cars rubber pad.