For comparison, in the Standard Model, the proton is made of two up quarks an one down quark [1]. Each of the has spin 1/2, and the composite particle must have a non integer spin: 1/2 or 3/2 in this case. The proton is the one with spin 1/2. The version with spin 3/2 is the Delta+ particle, that is a 30% "heavier".
[There are other technical details, like if the three rotating neutrinos break the Pauli exclusion principle for neutrinos. I suspect that this is a problem, but I'm not sure. The inclusion of the Higgs boson is very strange. Anyway, the total spin is the easier to explain and check.]
[1] And a bunch of gluons of spin 0 and virtual particles that get compensated and don't affect the total spin. Let's use the naïve version with only three quarks.