I have not used these finishes but can give some pointers that I hope you find helpful.
First check all the parts for flaws and do any fileing and sanding on castings befor fitting. Clean edges can be fit easier and faster.
There's plenty of wood on most kits so look at some original rifles even pictures can help. Have these pictures at hand as you work and you can refine the lines of your kit. Note the width of the panels around the lock and how the forearm is not flat on the sides. Trimming just a bit here and there will make a huge difference in the finished gun. The top edge of the forearm next to the barrel should be rather thin, about 1/16" or less.
The wood must be sanded with backing blocks to keep edges sharp and lines straight. This doesn't take much time and will help you control the shape. Adding a tiny bit of water based stain to the water that you whisker the wood with helps detect sratches you may of missed. I whisker between the last two grits of paper.
In using the metal finish of any brand the results are determined by the prep. Even sanding and through cleaning can not be over stated. When I degrease the metal the first step is a rub down with a solvent then I don rubber gloves and wash the items with detergent and water using a brush. This must be done till there is no beading of the rinse water. Never touch these parts again with bare hands till done with finishing. Dry with paper towels and immedantly begin the finish.
Have fun and keep us posted