Your barred hens mated to a non-barred cockerel will result in black sex links, yes. The males will have a white dot on their head at hatch, and will mature into single-barred birds. The females will lack the barring gene and will hatch black, maturing into black pullets. This is because males have two 'slots' for the gene, whilst females have only one, therefore a male pure for barring is BB, a female is B-. This is why pure barred males are lighter than barred females, as the double-dose is stronger.
Generally it is easier to see the little dot on a black base, though autosexing breeds like the Legbar use a partridge base, like that of a welsummer, and still show the dot. As the Barred Rock and Dominique are both black barred (without the barring gene, they would be solid black), and black is dominant over most other colours, you should be ok using a SLW, too, though I would go with the Welly for those pretty dark brown eggs.
ETA: With the barred Turken cockerel, sex-linkage is not possible. If he is single-barred (hen-barred, dark-barred, aka impure for barring), half the pullets will be black and half will be barred. Likewise, half the cockerels will be single-barred and half will be double-barred (pure for barring). Therefore, though you can guarantee that the chicks lacking the dot are female, there will be others that do have the dot, and are barred. If he is pure for barring, all chicks will be barred; males double barred, females, single barred. This is because cockerels get two copies of the barring gene (one from each parent), and pullets get one copy, from their father.