You need a socket to remove the nut opposite side of the spring perch (step 1).Arrrrgh! So what all tools would I need beyond the obvious?
You need allen wrench(es) to remove the spring perch and bearing collars, and to loosen the cam (step 2).
The chain is (I believe) attached with a screw at the footboard (step 3).
That should be all you need to undo.
Step 4: Remove bearings to free the hex shaft.
Step 5: Remove hex shaft assembly.
Step 6: Swap cam and chain* for strap setup.
Reassembly is done in reverse order.
*Make sure you note in which position the new cam goes on. You have 12 choices. Six are backwards, and five of the six remaining are wrong.