Yes the dominant white will change the red color to a buff. The sex linked crosses are usually with Rhode Island Red and New Hamshires. These reds are wheaten based but can also be eb based I believe and laced wyndotes are eb based. The eb will come back if you cross in like I suggested in my other posts. Moving a dominant in is one of the simplest projects you can do but it dose take a bit of time. Just as soon as they are breedable make your next cross in. By your 4 and 5th cross you may be tempted to stop they can sometimes look so pure. Just dont do it, make yourself cross in further. Rhode Island Red carry recessive black genes so you may need to loose some of those also. Even though Ml is part of the genes for laced and spangled colors. Spangled are on birchen based birds usually. Birchen allows the tail to get laced or spotted. Polish laced have laced tails they are birchen base. Wydottes are eb based and they dont have laced tails. You need to realize that the dominant white will try to create a white bird when you mate two together. But you should be able to control that by mating red to buff or gold. The blue red lace will not have the dominant white since they are red. The guy who has the sex linked page at the first part of this forum is quite knowledgeable about which whites would be best for you to use as they use them so much in sex linked hybrid matings. He knows alot about genetics. If you want to just do your own first cross with a white. Roosters are always abundant so you should be able to get a white rooster easy , just have to decide which breed to select for the white.
