Need help building a bed in van (santa cruz)

Hey there, Looking for some help from someone who has some tools and would like to help a gal and her dog out! I have the wood and legs.
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pieces may need additional cutting though.
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so may need a saw, as well as power screw driver I also need help removing the back seats which has some bolts.
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Your carpentry skills and kind heart are much needed to get a level sleeping spot!!!!