Magnum Oil pan/gasket fitment issues

Working on buttoning up the bottom end on my 360 and having issues with the oil pan gasket and pan. When I dry fit the pan I am flat on the block. I have a one piece Magnum oil pan gasket and I understand that the front piece needs to be cut off and replaced with the LA style front at the timing cover. When I fit up just using the LA front piece I have a gap at the pan and I am about a quarter inch above the block on both sides. When I try the one piece Magnum gasket, I am about 3/8 of an inch on both sides but the fitment is better. Still too far away from the block. If I were to tighten up the pan bolts pretty sure it would bend the pan. I am using a JEGS or Summit LA oil pan. Any thoughts on this?

This is the LA front gasket. Notice the gap between the pan and gasket In the corner. Gasket looks straight but pan is curved.

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Here's the full Magnum gasket.
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