What camera should I choose for photographing my artwork?

I have a budget of around $500.00 and have my eyes on Canon - EOS Rebel SL1 DSLR Camera with EF-S 18-55mm f/3.5-5.6 IS Zoom Lens, but the sales person insist I should go for the Sony - Alpha a6000 Mirrorless Camera with 16-50mm. This one cost 150 extra.
I only want the camera to photograph my artwork on canvas and promote myself on the web and Galleries.

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Nikon d3200 wont focus?

My camera wont focus nothing nadda no fouc d3200 nikon
Added (1). Has regulard mumbo jumbo lens nothing special it came with lense.

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