I'm just gonna leave some bad camera phone pics here. I've just had the flu followed by a good ol' dose of pneumonia. The upside of which is I've quit smoking and I've gotten some work done on the engine.
The SA guys may of noticed I've not been on the forums much, this is because I decided I needed to focus on my new career. So I ditched forums, facebook, reddit and etc for a few months while I did that.

This is what I'm stuck on now. This is a bolt that is used to hold the exhaust camshafts sub-gear pre-tensioned. Once the inlet camshafts are in the bolt can be removed and the exhaust camshaft subgear is released with tension against the inlet camshaft gear.... phew...
Anyway the bolt I'm using is too tall and prevents me getting the final camshaft journal cap fitted. So I need to buy a different bolt. Toyota has a specific part number for this 'service bolt'.