No need to bleed the oil circuit, that only has to be done when you drain the frame oil store.
Normally I would say no, don't bother checking the valve clearances. BUT given the rocker arm roller bearing failure issue, I would at least measure the clearances now. Typically these valves bed in over the first 5-10,000km then don't move much at all. IF they move noticeably, it will likely be the roller bearings failing.