Condor60,
The finishing resin I used is made by Pacer Technology in California; brand name Z-Poxy. Comes in two 6 oz bottles, mix 1 part to 1 part, but you can also thin slightly with Rubbing alcohol. I didn't thin and it worked fine.
I assume you have the directions and are putting the 2 oz fibreglass cloth on the wing center section, so I will only talk about the finishing of the wing. I can't find it written anyplace, but seem to remember that I used .75 oz cloth to finish the wing-very thin and light. Other materials are disposable, cheap brushes (bristle, not foam), either very good scissors or a cutting mat and rotary cloth cutter that the quilters use. Also need a 'scraper'; I got one at a body shop specifically for removing the excess resin from the cloth. An old credit card will also work. Then I used rolls of toilet paper and a dowel rod to roll over the cloth to remove even more resin after scraping. Lastly, lots of paper towels and rubbing alcohol for cleanup.
The procedure I used was: Cut the cloth to about 1/2 inch larger than needed but don't wrap the bottom cloth over to the top of the wing - it will be overlapped when you cover the top of the wing; paint on the resin on the bottom of the wing; lay the cloth on the painted surface and immediatlely begin brushing from center out, smoothing all wrinkles and no air bubbles! Once smooth, 'scrape' as much excess resin off as possible, cleaining up with paper towels and alcohol; then roll the toilet paper over the cloth with a dowel rod, tearing off the sheets when they get a little damp with resin. When done correctly, the weave of the cloth will be quite visible and NOT filled in with resin. When dry, lightly sand with 80 or 100 grit sandpaper. Then repeat the process on the top of the wing, ensuring that the top piece of glass cloth overlaps the cloth on the bottom of the wing. When finished, you won't be able to tell where the overlap is. I used Nelson Hobbies (http://www.nelsonhobby.com/paint.html) primer to fill in the cloth weave, but I'm sure there are lots of other choices for that.
In both the top and bottom covering, when the glass/resin is dry, you can carefully trim off excess clothe with scissors, X-acto knife and sandpaper.
Last note: If you ever make such a mess that it isn't salvageable, take the resin soaked cloth off the surface, throw it away and immediately clean the surface with alcohol. I had to do that once on an elevator or aileron, can't remember which. Good luck!
Regards,
Mark