Splash will breed blue 100%, both genders, over pretty much anything other than dominant white.
Any cuckoo hen, even a gold cuckoo, over the Wheaten will produce sex linking...if you can see it. The white dot (for barred males) may be hard to see against any gold down, but it will be there. Males will be barred...black patterned on gold (which I think will be gold down as chicks with white head dot). Females will be BSL with gold at neck.
Any FBCM will produce essentially red-gold pattern on black...the BCM pattern, both genders. (I had to run the breed calculator for that one as I thought they might come out just black).
This breed calculator does have Wheaten so you can run other options as well.
Happy flock breeding

LofMc
https://www.breedbook.org/?action=geneticscalculator&tab=CHICKEN