Refitting Rockster cylinder heads

[Ribcracker]

I have removed the valve blocks / cylinder heads to get the exhaust studs drilled out.
They are back now, all done and I am ready to refit (with shiny new exhaust).

When removing I zip tied the camchain to the cam sprockets and undid them, so the sprocket could not move in relation to the chain.
The sprocket is indexed to the cam so timing cannot go adrift.

My question is, before I attempt to reassemble, is it easier if I loosen / remove the camchain tensioners, and refit them afterwards?