Laurie,
I never glue any small parts that I can easily break off till the very end, especially if I don't need to weather them like Antennas etc. I don't even glue up the landing gear till I'm ready to paint, some times I leave them off as well till the end. I just painted the bottom of the A-6E, and I haven't even started to build up the gear. Same goes for gear doors, etc. I paint, polish, decal, and weather them off the model. Experience has shown me that I'm going to knock most of them off sometime during the build.
I'm pretty sure we discussed orange peel before. Usually it's caused by the paint not flowing smoothly enough. Once dry, you can rub/polish it out. It's rare that I get it smooth enough without polishing it. It's not caused by the paint hitting the surface almost dry. that would show up as a rough, sand like texture, not orange peel. You don't need the gloss black to have a mile deep shine, just get it as smooth as you can, without rubbing through it.
As for the paint still feeling sticky after 4 days, it is what it is. You're painting out doors in humid conditions, so it's going to take longer for the enamel based paint to dry, then cure. You shouldn't even be polishing it out till it's completely cured. I paint in a air conditioned room with a 50% humidity level, and I still give the enamel base paint 2-3 days to fully cure. My brother goes 5 days at his house, and he also has central air. Just don't rush it, cause you'll just end up causing more issues that will need to be addressed.
Use the time to build and paint your landing gear, gear doors, etc. If you run out of things to work on, then pick your next build, and start to accumulate research material, pictures, details, etc. It's time well spent. Once the build starts, you never want just do google searches.
As far as distance to the model, for Acrylic paints I'm about 4 inches or so. For Alcad 11 and Model Master Metallics, I'm 2 or 3 inches from the surface. You just want a even mist coat.
Here's their home page. It's a must read. Plenty of excellent information. As a matter of fact, one of the models they paint is Tamiya's Mig 15!!
http://alclad2.comJoel