Its possible to make a thudbuster fit a number of folding bikes.the problem is getting a post long enough. They are available for Dahons.
Otherwise.
If you can find a telescopic post on ebay that fits the bike with or without a shim. Then swap a thudbuster for the inner section.
Need to research the diameter of the bikes seat post and then ask about the internals of any telescopic post you can find.
I have used this method to add a suspension seatpost to a mezzo and a thudbuster to a birdie. Thudbuster on the birdie works great. Its like a sofa!