I ran across an article from Oct. 2017 by Asa Christiana in FW where he repurposed a base cabinet into a rolling work station.  A few years back I was in the process of converting my one room cabin into a wood working shop.  As a novice wood worker, and lacking a work bench, I converted my old sink base by installing casters and adding a 1 1/2″ thick MDF top with a 2″ overhang.  Although I didn’t see his article until today, I was amazed at how similar mine is to his.  It works great, especially when sanding and doing glue-ups on small projects like cutting boards or candle holders.  
Thank you.