Spike

Hi, newbie in the U.K. I bought an orbital sander, the DeWalt DWE6423. I thought I would get the hard case to go with it but no, it came in a cardboard box. So I see I can buy boxes and inserts separately, can anyone advise the carry case I need? I imagine I will need a case larger than I need for just the sander, that’s ok, I have a few other bits and pieces that could share space. How practical are the foam inserts? All tools gather dust, I imagine the foam will collect dust and be very hard to clean. Otherwise I can make up some internal dividers using tufnol or ABS. Thanks