Mike,
What am I missing? Why the mixing of the gloss and satin?
As for what I do, (and each builder/restorer will tell you something different) to finish the inside.
Strip/clean/bleach/clean/replace wood/sand/sand/sand.
Oil with 50/50 tung oil/low oder minerial sprits, 1 qt max.
Coat 1 - 75/25 varnish/thinner - my preference is Interlux but I've also used Pettit and Captains, but they go on "diffferent" and don't last as long in the can.
Coats 2-4 - 100% varnish, sanding between coats. Done.
But to make it look pretty, spend extra time on the trim. The decks and thwarts are the 1st things most folks see and remember.
I do the thwarts/yokes inside on a stand, with pins in the ends so I can rotate the thwarts. Thwarts get 4 to N coats, whatever is needed to get a perfect finish. Do all the normal anti dust activities, and I use foam brushes to apply the varnish, I rotate the piece to prevent runs.
Decks are also prefinished before installiing, again, 4 to n coats to get a prefect finish, though here it isn't quite so important. After the canoe is trimmed out and all coats of paint are on, I put a final coat or 2 or N on the rails and decks, again, enough coats till I'm happy with the results.
Forgot you asked for quantity - figure on 2 qts. You could probably do just the ribs/planking with 1 qt but to also do all the trim with multiple coats, you'll need a 2ed qt.
Oh, you didn't ask but, the same goes for the painting of the canvas, about 2 qts marine paint. Roll it on and tip it with a brush, most of the 1st 3 coats will get sanded off as you block sand it to get it smooth, coats, 4-5-N should get you a nice smooth top coat.
Dan