There seem to be a bit of a misunderstanding here.
Cyanoacrylate/super glue doesn't actually frost clear plastic. With that I mean that it isn't a reaction between glue and plastic that causes the frost-effect.
It becomes frosty when it comes into contact with something with a bit of moisture in it, such as the oil from the skin of our fingers.
This allowed Axel Foley to find fingerprints using superglue in Beverly Hills Cop, and is also used by real forensic investigators today.
This knowledge allows us to avoid the frosting-effect. If you wipe off the clear plastic bit, perhaps with a mild alcohol-based fluid, and handle it gently or with gloves....no frosting appears.
Of course, the amount of super-glue you use also have an impact.
The more glue you use, the more fumes are released. This also increases the chance of frosting.
I had exactly the same worries as the
OP when I put my Ork flyers together.
Following the above laid all my worries to rest.
Now you might think; " hhmm...wiping off with alchohol...using gloves...sounds like a lot of work", but it really isn't.
As it is the fumes that causes the issue, you only really have to worry about the inside of the cockpit, ie. the enclosed part.
Next put your glued model somewhere with a bit of air-movement, such as a window-sill, next to a fan or outside. This the prevent the fumes from concentrating and effecting the outside of the cockpit, and you will be left with a clear cockpit-canopy.
....