Hello Devin!
Shaping up to be a beautiful car. And the blue you've chosen is stunning!
Normally I wouldn't chime in on color combos, but since you asked for suggestions....
I second what my friend Hoss wrote...Blue body, tan seats, grey carpet...three colors...one too many.
I'd coordinate the carpet color with the car, with the tan seats and tan dash trim. And either match the top to the seats or go with navy blue for the top
The car you posted with the tan seats and grey carpet works because it's a silver car. Silver body, grey carpet, tan seats, basically two colors.
Of course beauty is in the eye of the beholder (bee-hive-holder?)!
She's your baby...go with your instincts. Regardless, she's going to be a beauty!