There is no difference with these elbows used on stock turbos for either hot air 84-85 or intercooled 86-87. the only difference is the casting date code, xxx day/ yy year. Kirban's would have these at his open house bagged & tagged parts for like $5 - removed from the turbo cores he receives... I'm sure others have them laying around as door stops as well.
for the wastegate actuator, the original 2-port actuators are long gone. Precision told me in 2012 that they were worth about $300 each.
you can adapt the stock 86-87 wastgate actuator sold today for the hot air cars. buy from someone on the forum or from Kirban's. see this thread for the details...