A/C questions on '66 Valiant 100

Hey all! I just put in a new RV2 compressor and fittings for 134A air and had my receiver drier rebuilt. Is this a good idea or am I going to be seeing this pull a lot of HP and potentially not even work in 6-12 months? My Valiant has the 225ci and is a factory air car. Someone suggested getting a universal compressor (Sanden style) and changing some fittings and said that would be a better fit and only pull about 8hp, any input? Anyone done this on another Valiant that can give me some advice?

My compressor clutch is looking like it is shot and I need to find a good used one I guess. If I were to go with getting a Sanden style, that'll come with the clutch and save me some homework since finding one for my RV2 is proving to be unattainable.

Any input would be awesome, I totally appreciate it:-)