This one was pretty well balanced out, by my estimation, there was maybe 690kg before the axles, 320kg over them and 720 behind the axles, so the stability was still reasonable, Jeffrey did have to take extra care driving to ensure we maintained control, but the only time it felt in any way uneasy was passing one particular truck, which caused a reasonable amount of wind buffeting.
Had it become at any point an issue, I would imagine moving only one or two mowers, along with the removable rear ramps of the trailer, to the front of the load would have helped to regain necessary stability.
Overall, it was not an ideal situation, but due to the way in which the boards had been constructed, they could only be used in the one position, and further to the need to maximise board space, we further found that with the stove central to the trailer, it was not going to be possible to secure it in a satisfactory way, which would have left the stove itself quite unstable, and due to its weight that would have made the whole load too unstable, with that in mind, option chosen seemed to be the best solution, provided it was done carefully to minimize the risks, maximise front weight, and that it was moved with all due caution.
If faced with the same scenario again (something that seems entirely unlikely, due to the lack of need for more stoves) I would think that when creating the boards, it would be a suitable Idea to design them to sit in both full front and back positions, or at least to allow the option of having them one stove depth back, to allow the stove to ride upfront, however when they were made, the stove was not part of the concept, it joined the parade much later.