Buick help needed

Hi, One of my vehicles out front is an 88 chevy v6, probably the same engine. The only problem I have is figuring the best way to get my arm back there. It would help if I had another joint between my elbo and wrist. If the alternator is on backside of engine toward the firewall, sometimes I remove the alternator and bracket, gives me more room to get my in there from the passenger side. If fooling with alternator, remove negative battery cable. I have hear of some people rotating the engine forward, to get at plugs, I haven't done that. Have a good evening or day. Jack