Rusty oil pan...repaint?

[chris91LX]

I've got some rust bubbles that have formed on my oil pan and I don't feel like pulling the engine right now to replace the pan. Is there any problem with sanding them down and repainting the pan while it's still on the car? A guy at a shop told me I'd weaken the walls of the pan if I sanded it down but I can't imagine it would be that big of a deal. The bubbles are pretty small and it's not like I would have to use a grinder. Anyone have any advice?

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91 LX 5.0
Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come!