Cassandra just returned to her seat and started unboxing her kit and going over the parts there in. 

Once she confirmed all was in order she flipped a couple pages into the instructions and started building the waist unit, from there, chest and upper arms since you needed attach the arms to finish the chest anyway, then legs, head, lower arms and weapons. 

As she worked on the Gundam, she found her self sighing in annoyance with just how complex it was for a 1/144 scale. She knew RGs had way more to them then an HG, but all the components for the transformation was a little irksome to her, especially in the shoulder armor when she had to partly disassemble it due to a piece not being in the right spot for the transformation like she thought she'd had it originally. 

But she kept at it and complexity a side it was a more interesting build then she usually partook in. Since she was mostly a 'battler' then a 'builder' she typically just stuck to HGs since those had less going on and thus easier and quicker to repair and get back into the fight. 

Ease of repair is pretty much the whole reason she picked Bael to begin with, even though it ended up growing on her very quickly.