I have a 1.5 ton r22 system with <50ft line set 3/8" and 5/8" in size. Indoor equipment is in good condition but my condensor has failed due to corrosion in a harsh coastal environment. I would like to replace it with a goodman 13 Seer unit with 3/8 and 3/4" line connections. I would like to avoid replacing the line set as it is in a closed chase. Can I make this system work? Acheiving maximum efficiency is not a concern however I don't want to compromise the mecahical longevity or the warranty. Any help is appreciated