I think mixing tactile/clicky/linears is a bad idea, here's my experience
Single black spacebar on a red board: beautiful, the spacebar requires a stronger switch, the keyboard feels great
Single tactile spacebar on a green board: off putting, the spacebar is soothing, yet the difference of the feedback type throws me off, which nullifies the positive aspect and pushes things to the negative
So my suggestion would be, try browns instead of linears for modifiers, makes more sense, it would be less off putting
A better idea is to use weaker springs on the modifiers, since you want them to be easier to press, which makes sense, yet a linear would make your brain seek the tactility and get micro confused