www.Probuild-uk.co.uk claim to have it in stock already. There's a guy already building one here:
http://kobago05.hp.infoseek.co.jp/myroom/tops2.htm
The MK engine mounts are soft. The kits are designed around them and it's difficult to alter the nose for say a 45 degree side exhaust engine or a hyde mount. There's no firewall since the nose is also built around the wooden beams and is an integral part of the structure. It doesn't get much quieter than that. You don't get any resonance from the fuse like you do with a composite one, and no nose-ring is needed.