Myself and a friend used United Vacations for a quick trip to Hawaii last month. Fare was bulk so no PGD but got my PGM. You have to call to apply your RPU but they were able to do it and we cleared both ways.

Do check pricing it individually. When I did, we saved about $125 each but in hindsight might have been easier to book each portion instead of a package. Hotel was a Starwood where I have Gold status and it was hard to get my gold number attached to the reservation.