All about the Roland Jupiter-series

Hello Group - 

I have recently taken ownership of a pre-DCB Jupiter-8 that I would 
like to retrofit with a MIDI interface.  I understand that Kenton and 
Encore make two of the best MIDI interfaces available for this synth.

I would like to solicit the opinions of this group.  I realize 
that 'best' is subjective and will come down to whatever kit suits my 
needs better but I'm hoping that the group can weigh in on this issue 
and provide some insight from personal experience here.  If anyone 
here has either one of these kits and could tell of their experience, 
the cost and the usability of the MIDI retrofit I would appreciate it 
very much.

Thanking you in advance,
Chris Holloway