Any issues with angiotension receptor blockers (ARBs) as these may have the same effects as ACE inhibitors? Are calcium channel blockers allowed?

These are both allowed. ACE also breaks down Substance P (SP) which is the endogenous ligand of the NK1 receptor and it is the accumulation of SP that is believed to cause ACE inhibitor induced coughing. This consideration isn’t relevant to other anti-hypertensives which do not block the breakdown of SP.