This Polini crank is a good and healthy choice if you need a crank for your Minarelli engine, but don't quite know if your setup remains standard or crawls up into the Sport segment.
The relatively low price certainly does not make the crank less attractive, nor does it mean that you get a Polini product that is below their standard. The finish is as you know it from Polini, impeccable.
Note: This crank is with ø10mm crosswind and comes with a Polini 10x14x13 needle bearing.