I absolutely love this review Pandora. You've provided an amazingly in-depth look at a real Fabuland classic in your usual informative but very amusing way.
I like that you present such a detailed view of the box. The 1980s boxes were great, because they showcased a set really well. All the interesting parts were prominently displayed in the trays that featured in the bigger sets and the back of the box was always a real treat with nicely presented alternative builds. The same goes for the instruction booklet. Your booklet looks in excellent shape and you made sure to archive it for future generations. The way the set is built by the characters themselves is simply adorable.
It really is a shame that LEGO decided that the Fabufigs needed to be changed halfway through the 1980s. The addition of torso prints is a nice touch, but... the eyes... the first generation figures were really cute, but some of the second generation figures look a bit creepy. The parts and the accessories included with the set more than make up for that though. The bay window, the grey roof pieces, the phone, the petrol pump, the bench... It really is amazing to see all the new parts that were introduced for Fabuland and the limited amount of sets they were often used in. I don't think that would be possible anymore today. The numbered stickers on the Fabuland buildings mostly correspond with the last two digits of the set number, so your 3675 set indeed gets number 75.
It's nice that you decided to have the Fabufigs build the store as they do in the instruction booklet. I fully agree with your evaluation of the large prefab wall elements. The windows and doors are great designs and they allow small children to quickly construct a building, but I really don't like the way they line up in corners either.
I also like that you seem to make a tradition of showcasing some of the alternative models from the back of the box. Wacky as they may seem, they would surely stimulate children's imagination.
I love that final picture.