Sharon Schamber has a set of videos up on YouTube that were likely the inspiration for the pool noodle idea. Sharon used narrow boards instead, which are easier to handle. This method allows you to baste on a table, sitting in a chair. Perfect if you are not fond of crawling around on the floor!
By rolling the top and back onto separate boards, you can control the fabric easily as you get the sandwich put together. Sharon bastes with thread, but pins or spray would work just as well.
The videos are 17 years old so alas of very poor quality, and should really be re-filmed in high definition with good sound, but they are well worth watching.
Part 1
https://www.youtube.com/watch?v=bhwNylePFAA
Part 2
https://www.youtube.com/watch?v=k_EjBGz5vGQ