If you are faced with the back of an SSL XL desk with 29 D's or a 96 way 25 way D patch with 12, get in contact as I can build the cables from these to other equipment. The same thing applies to Duality, Matrix and X Logic consoles.
25 way D custom looms from GB£20 per end (price is for 25 way D end, parts and labour) plus cable (Van Damme 8 pair £6.50 per metre or less). Other end cost depends on connectors, sheathing and labelling required.