Belly pan aluminum grade

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Looking at cost of alum for a complete new pan on a 1963. Was going to use 5052-H32 .032. I noticed 3003H14 in .025 is substantually less money. All from aircraft spruce. I've used 5052 .032 in the past, works fine. Have seen some referance here for 3003. I was under the impression that 3003 was very soft, is 3003H14 the same? Anyone use it. If so how does it hold up.

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Should anyone else have the same question. 3003H14 in .032 works fine. For a '63 28 ft 4X8 sheets were the answer. Easier to form the 4 corners, have quick future access panels to tanks and plumbing if necessary, neat job, little waste. 9 sheets $44@. Enough to also make 60ft C-channel.