Just be careful if your aircraft wants to fly before your V1/R speed.
Hence my observation Let's not be ridiculous. It should be obvious where the speeds become Vmc limited .. so, for Vmcg, one only wants a pad sufficient to cover Vmcg plus the likely crosswind increase in Vmcg.
This has happened to me several times in a big jet.
First, my view would be to delay the departure unless you have the AFM on board and can do some sums yourself.
The limit will then become the WAT data, which should be in the Ops Manual if you don't have the AFM. In addition, I would want to check that the runway slope doesn't present a problem with respect to first segment gradient, should that segment exist for the particular aircraft and conditions.
If the runway length clearly is non-limiting, in a similar vein to having a speed pad, I would be inclining to a reduced thrust takeoff unless there were some other reason suggesting not to do that, for example, an expectation of wind shear.