Hi Rod,
I use Lincs on my layout (see link below) and have done for some years now. You will need to solder the actual hook to the pivot tube but it is not necessary to solder to fit to a loco or wagon etc. The one issue you may find with some locos is lack of space to fit the coupling. It is possible to fit a fixed, non pivot, hook in these circumstances. As long as one of the items of stock has a pivoted hook the couplings should work OK.
Alan.