Yeah I did this conversion on my MA70.
The only thing that didn't work was Fuel Gauge - which you will need a digi fuel sender for.
The difference is the digi sender has 1 arm, and the analog has 2. - it plugs into the existing sender plug.
Do a search theres only a handfull of threads on here about it. In one of them there's a guy in NZ that can source them brand new from Japan.
I got mine recently local in Australia, but I did email that guy, and he still gets them. He quoted me $200- new zealand dollars I think.
Let me know if you can't find the thread and I'll see if I can dig up his email address.
HTH
Sam