Choice of Artisan Mattress

I am looking for a a new kingsize mattress and base and have been looking at your Artisan range. We are approx 11st and 14st, both sleep on our front and prefer a medium to firm feel (definitely not soggy, but not very firm either!). I am assuming we would be best suited to a medium spring option, but am not sure about the comfort later. I am not too worried about cost.From what I can see the Artisan Luxury would likely be too soft? That leaves the Bespoke, 002 and 004. The Bespoke is the firmest, but I am not sure whether it would be too firm? Regarding the 002 an 004, if these are similar in terms of firmness, is there much difference in the feel?Also, can you confirm whether the height of the Artisan base and the Ottoman are similar and would there be much difference in feel when used with the above mattresses? Overall height is a bit of an issue and if one were lower than the other than may be an advantage. I assume all the artisan mattress are about the same height?Many thanks