Sunstreaker was deffinitely in stores. The mail order version, from what I recall, didn't include a box, but it did have a B&W copy of the tech specs. I wanna say that Mirage, & maybe Hound were also available this way, maybe a few others. Any bot that is in those catalog's(that come packaged with them) was available in store's. Some theorize that Reflector was originally planned for stores since he was fairly prominent in atleast the first season.
Hasbro has talked of taking the Generation Perceptor & remolding him to be a Reflector. I'd prefer it were 3 bots that combine into a camera, but, I might still budge if they do the remold, but ofcoarse, I'd have to buy 3.
As for the Deluxe Insecticons, I did some more reading & found this in Barrage's page
Barrage, like all of the Deluxe Insecticons, was designed and originally produced by Takatoku Toys for inclusion in their Armored Insect Battalion Beetras toyline (機甲虫隊ビートラス). Decoed in black and grey, the mold first saw release under the name Beet-Gadol. Takatoku Toys went out of business a short while later in 1984, and their assets were purchased by fellow Japanese toymaker Bandai. At that time, the American market was one Bandai was not very active in, which made it a competitor of Takara, but not of Hasbro. Due to this, the company had no objection to licensing various Takatoku molds to Hasbro in 1985 for sale in the American market primarily as part of their version of the The Transformers toyline. Nowadays, Bandai has a worthwhile interest in every market and since it only once licensed the molds, there is little likelihood that Barrage and company will ever be put up for reissue.
Since Hasbro and Takara shared the Generation 1 cartoon as promotional material for their respective versions of the toyline, Barrage and the other Deluxe Insecticons were not included in its cast to avoid giving Japanese market-competitor Bandai free publicity. The group was also omitted from the US Marvel comics and barely appeared in the UK Marvel comics, making them the least "successful" of the Takatoku molds. This trend has continued in fiction since, the team's current highlight being their role in the Micromasters comics.
Barrage, Chop Shop and Venom all appeared in their Beetras color schemes on Hasbro's 1985 packaging mural, along with several other toys in early or unused color schemes.
http://tfwiki.net/wiki/Barrage#NotesHa, here's some alternate smaller(& apparently liscensed) versions of the Deluxe Insecticons
http://www.toyarchive.com/Convertors/Insectors.htmlI think I had the binocular guy at the bottom, he seems really familiar!
http://www.toyarchive.com/Convertors/Spies.htmlAh, I just realised I think I still have Chopper, who was based on the same mold as Whirl!
http://www.toyarchive.com/Convertors/Defenders.html