Intuition sells a home mold kit, which is the rice method ^^^. I've used it, and it seemed to work well.
The problem with oven molds as I have experienced is that you really do need a couple of experts, because the liner has to get out of the oven, perfectly in the shell, and then foot in boot before it has cooled too much to mold. With the rice method, liner stays in boot, pre warmed shell stays warm, rice pack comes out and foot goes in immediately. That is hard to mess up with basic knowledge and execution.
So the potential tradeoff is that with home mold you trade potentially a perfect mold of the outer liner (the rice is only on the inside so how hot does the outer liner get?) for a near zero error potential, and the inverse is true. Unless I knew I had an expert who would pay for any molding failures, I would personally do it myself with Intuition's kit, especially if the shell was designed with an Intuition liner in mind (true in my case).
Of course, the extent to which "never sacrifice the good for the perfect" rings true to you probably applies here.