Kiltie,
I still fly the old -200's with the SP177's and the 727-200 with little automation. Why would the workload be hard by doing a go-around? Have done a few of them in both aircraft, with and without automation, don't really see the big issue. If the a/t was off during the approach and a go-around was required, by pressing the toga button, the flight director would give you go around mode. The rest is just basic flying, pitch up, you need thrust, no rocket science if you ask me....
I understand where you're coming from with your company own sop's, that's your company's decision. We follow Boeing as it is pretty much straight forward and you're covered.