Help with Knight Questoris box option

Hello! So as the title implies, I recently bought the Knight Questoris box set.
Now I planned on magnetising the different weapons so that I may switch to whatever Knight fits best to the situation. Trouble is, looking through the manual it seems a tad hard to do so, at least with my current tools and skillset.

So the question to you more experienced in army building is:
Which Knight should I focus on, if my plan of magnets falls through?

My current knight army consists of:

1x Knight Valiant
2x Armiger Warglaves

I also plan of getting this years Holiday box, which I'm not too sure what it actually contains build wise. In addition to that I have a leftover hull from the Knight Valient box, so I planned on kitbashing any Knight that I have the weapons for.

Thanks for lending the time to read this, and even more thanks if you reply!
I'll try to answer any question that might arrise from this question.