It should "fit" but it will look odd because the wood will be narrower than the metal. The Hi-Tech has thicker side metal.
Technically, It's Impossible. The wood on an MX8 stock is narrower than the metal on a High Tech receiver, which can cause a less-than-perfect fit. Additionally, the length and shape of the forend wood vary between the two models, which could affect the overall balance and handling of the gun.