I just bought a GE SU70 top loading dishwasher. It came with original owners manual as well as original warranty papers.It is blue green in color and was working when we bought it. I would like to find out more info on it but can't find anything on the internet. I am thinking about giving it a good cleaning and using it in our cabin. I has no scratches, just a little dirty.What would I use to clean it with without harming the old finish? Also, how do I find out its approx value? (paid 70.00) any help would be appreciated. Thanks!