Good work so far!
Future is some great stuff and has some pretty good uses other than the usual coating before decals. Rodney Williams told me that he would use Future to glue his metal landing gear together that he scratch built, it can also be used for attaching photo etch & canopies. Sometimes I will also add it to some acrylic paint, it may make the pain a little more translucent, but it doesn't seem to make it more thin, and was some acrylics, I've found the paint would flow better.
You can and up to 30% clear flat to Future before you apply it over the model giving a flat finish, reducing the percentage of clear flat can give you varying levels of a satin finish.
You can get Future through Amazon.com. The bottle I found on their is pretty large, but maybe it could be split between a couple guys to also reduce shipping. You can always order other things like Bondo and Silly Putty, both of which I have found to be indispensable and I wonder how I got along without them. Brian can tell you about both of them. Here's the link for the Future: