Yeah that's the thing, isn't it. No idea how practical it'd be to include in the fund raising a slush fund to move any statue if needs be, but raising funds with that in it kind of takes the shine off Sillett's achievements too.
I'm wondering whether there could be a cheaper but effective option in having a bronzed 3D pressing of them both with the cup up on the outside walls, this could also be easily moved if the club should ever move to a new stadium. Just a thought if the funds required for a statue are prohibitive.
I have in the past suggested a Mt Rushmore-esque relief of Hill, Sillett, Curtis and Storer but think we'd need to leave expansion space for MR.
Apart from the fact is may well be cheaper than a full statue it also wouldn't take up floor space, potentially being a bit of an obstruction and also puts it more out of the way of potential damage or vandalism.