Some more Studio Series Bumblebee figures in stock at Popcultcha: Wheeljack, Ratchet and Brawn (and Soundwave still in stock too)
A little pricey, but if you don't mind paying some 'impatience tax' there you go:
https://www.popcultcha.com.au/transf...on-figure.html
https://www.popcultcha.com.au/transf...on-figure.html
https://www.popcultcha.com.au/transf...on-figure.html
http://www.popcultcha.com.au/transfo...on-figure.html