I always suggest shop local first, even if it costs a bit more. I liked Testors liquid cement for big joints, and Tenax-7r for most everything else. I think Tenax may have been discontinued, so here is where your hobby shop can help, by suggesting a modern alternative.
Tenax, and whatever replaces it, is a very thin liquid that you apply to a joint with a small paint brush. It will wick along join lines and makes a strong bond. Takes just a little practice to get really good with it.
Super glue has its place too, particularly when attaching resin bits, or metal. Do NOT use it near transparent parts, like your windshield!! It will "frost" your glass. Elmer's glue is good for attaching glass. You can apply it with a toothpick, and it dries clear. Makes a good filler for small cracks, and you can "sand" it with a damp cloth. Carefully, or it will soften and pull out. But then you just redo it.
You can also make small windows with Elmers, by running it around inside the edge, and then webbing it toward the center. Again, it dries clear, but its best to coat it with gloss varnish.
One last hint - always paint the entire wheels on kits that have rubber tires, because after a year or so, the rubber tends to react with the plastic and dissolve your wheel (!) Paint between the plastic and rubber prevents this.
As far as I know, Italeri made the only available plastic S-280 shelter. There may be some resin stuff. It all tends to be spendy, though.
Cheers