I know on the Alpine demo car website they use superglue to get the framework of their parts put together:

Here is an example:
Alpine Civic MDF Frame

Now I tried to find a large bottle of superglue and didn't find anything but the small tubes so I just bought 4 of those and used that. When I glued my MDF frame pieces since I had such a small tip I could only get a little on each piece. At first the frame pieces were on there perfectly fine but when I began stapling the fabric to the superglued frame pieces while supporting them w/ my hand on the other side buy they just started falling apart from the impact.

Does anybody know where I can get a big bottle of superglue or any other method that works. Or a forum that talks about this topic.

Here are the pictures of what I wanted to put together: