MSc + LL.M OR MSc with higher grades?

Hi guys, please help me consider the following trade-off.

Brief context for the question (some vagueness for anonymity purposes):
-European University (Its law school is pretty OK ranked IB, in so far as there is such a thing in Europe)
-The programmes are MSc Finance and LL.M in Corporate/Financial law
-Of course, I meet the entry reqs for both and it is technically possible to do them simultaneously

Here are my scenarios with probabilities:
1) I take up both programmes, I think my odds of scoring the coveted 8/10 GPA (in principle cum laude if you also manage to check some other boxes) are 70% on the LL.M and 20% on the MSc (although it should be >7/10 with 100% odds, if not I will just reincarnate and try again).

2) I take only the MSc, I think my odds of scoring the 8/10 GPA are 70%.

You might notice that I think scoring one cum laude in scenario 1 is 76% likely, which is higher than 70%. Unfortunately, it'd more than likely be the less relevant degree, which I expect to also be far easier.

The probabilities are obviously guesswork, but I gotta work with some base line. The LL.M programme seems so easy to me that moving time investment from the LL.M to the MSc in scenario one yields barely any improvement to it.

So there is obviously a trade-off here. Let's disregard my broader personal interests and assume my one and only goal in life is to break into the IB scene anywhere in Europe.

My personal assessment is that it is better to take the two programmes, even if it is likely to lead to a lower MSc GPA, because it also shows dedication to finance, ability to manage multiple responsibilities and versatility.