Dexter HD Suspension & EZ-Flex Install (long w/ pictures)

Just wondering if anyone has installed the EZ Flex Equilizer on a trailer with tandem AlKo axles on 35" spacing and a 4" equilizer. I spoke to a Dexter rep yesterday concerning which packaged parts would be appropriate and was told it is doubtful the system could be properly installed to work on my trailer.
Since my 5er does not have Dexter components under it, I can understand their reluctance to assure a potential customer their product will function as desired.