I also assume you are not planning on letting people borrow or rent it from you?
If that is part of the plan, then I would encourage you that this may cause more headaches than you expect. Our association had some petrol mowers which members borrowed for the cost of petrol. Of course, allotments were not the sort of terrain that these home mowers were designed to withstand. They broke frequently and we didn't have professional mechanics to keep them ticking over.
We also did not have liability insurance in case anyone was hurt either as a result of misuse or breakage. We provided training on using them, got people to read instructions and sign a disclaimer, but all of these were only ways of aiming to reduce the risk of things going wrong.
In the end, we decided the risks and hassle were too great, and over the pandemic we eventually got rid of them. (The mowers, not the members
)