Monocote trim is great for monocote or solid airframes that can handle the weight. These I print on copy paper, using tape and such as I cut them out. White Krylon is similar to Laquer, so I would test your brand of dope to the painted surfaces as a test. If you are cover tissue with tissue, then you do not usually use a white undercoat. Part of tissue coveing is what they look like.
However a most interesting thing to do with tissue is to scrape chalk from the artist pastel sticks (not the kid stuff). Put the fine powder on the back of your tissue, rub it in, wipe off excess with a tissue. When the dope or top coat hits it, the caulk 'fixes' and becomes part of, and changes the colors to something much more vivid. Chaulk is light too. Test it out because some colors added to colored tissue give some altering hues, but so cool to play around with.