There isn't fire-cured in either brand. Adding fire-cured to your blend will give you Dutch-style halfszware.
I would think that some Red Virginia, Brightleaf Virginia, Burley, and Izmir would put you in the ballpark. For a Camel taste, use a higher percentage of Izmir.
The "Lemon" Virginia, I think, in combination with Brightleaf Virginia, would put you in the ballpark of Canadian cigarette brands like Du Maurier.
I don't think it is really possible to exactly copy any specific brand, because each cigarette brand has its own proprietary blend of tobaccos and flavorings. I think it's going to take some experimentation to find a "recipe" that results in something you like. It is conceivable you might just hit upon something you like even better than the "commercial" brands you were smoking.