This is just a thought I had….( cost about $100 )
My bathroom sink and countertop combo is faded, a little stained, and borderline butt ugly.
I was thinking of cutting out the sink, covering the counter with formica covered plywood, then installing a stainless steel sink. Paint the edges of the plywood with marine paint, then covering with metal trim ( aluminum or stainless )
I found a shallow stainless sink, meant for use as a wet bar.
Or….Somewhere here on the forum, I think I heard of people repairing ABS with epoxy. I THINK….that you would have to make a semi wide repair, or else the " bump " would be very noticeable ( I came to this conclusion when doing joint compound repairs on walls )