Hmmm.... I'm not sure that MU Eastern Miles would be that much more generous for the OP. Looking at their earning chart, they give only 50% miles for most economy booking classes on AF/KL. It's only Y and B that seem to earn 100%.

Also, you need 100,000 points (I assume this is km, not miles) across 2 years to get Silver status, which the OP wouldn't manage with the mentioned 44,000km/year - even on 100% mileage earning.

Would you better off looking at segment qualification? Flying Blue will give Elite status for 15 qualifying flights in a year, and Elite Plus (with lounge access for international flights) for 30.