:thumbsup
If the "blue laced" have the same double lacing, and the same mahogany center in the feathers, then you should be able to interbreed them with the normal double laced ones. If the "splash" also have the double lacing with mahogany, they can be interbred freely as well.
At that point...
Perfect recipe? There is probably no such thing. For most chickens, there are quite a few good ways to breed them, but nothing perfect.
Do you already have access to Blue Laced Barnevelders? If yes, and if you've already seen a black/blue/splash breeding chart, then just breed laced...