Defender side art

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I'm looking for artwork for my 2 Defender arcade machines. Ebay prices have been prohibitive, so i'm wondering if anyone has got any they were going to use but now have as spare? Also, any application techniques you have used to get the sideart on properly. One cab has been restored to it's original colours by removing the black paint someone had put over it..the other is just black. I need to do something with the second one especially. Thanks for any leads on this :)