As Chanda said, the LWO lethal white is only if BOTH parents give a frame gene. If Goldie is from a Splash parent with no frame, then everything is fine. The potential would only be one gene possibly transferring from Banner. Perhaps your pedigree information would tell you if Goldie had any frame in her background.
Worrying is normal, for all of us, especially as the time grows closer. But I would think everything will be fine...we'll be praying for that!