If Last Call is your sole reason for wanting RCI and/or II Membership, this may be an off the wall answer but I think you should check out buying a cheap Week affiliated with RCI (and maybe II too); join RCI and/or II; sell or give away the Week;and keep paying the RCI and/or II annual Membership Fee. This way you have no annual MF but continuing access to Last Call.
George
OP bondy3
already has (...whether wanted or not) a RCI membership by virtue of the Wyndham purchase s/he mentioned. That RCI membership (wanted or not) is attached to Wyndham ownership --- but that doesn't in any way address or solve access to Interval International.
II will of course actively verify ownership with a II affiliated property before allowing or processing a II membership, but your idea does not seem entirely "off the wall"
if the OP could find an inexpensive II affiliated interval and later dispose of it. That being said however, I dunno if II would track (or care) if the II affiliated ownership was sold or given away in the future, nor do I know whether it would matter if II affiliation itself was to terminate in the future (I do know of an instance or two of former
dual affiliations, but with the II affiliation later "going away"; I do not know if those "partings of the ways" were at II initiative or at resort initiative).
We certainly know that RCI does
not care one bit about future ownership status with
non-Wyndham properties, as long as the RCI membership fees keep getting paid. With a
Wyndham ownership however, the RCI membership is mandatory and the RCI membership fees are paid via the monthly fees to Wyndham. If a Wyndham ownership "went away" later, and it was the
only RCI affiliated ownership in the owner "portfolio", I dunno if the associated RCI membership would also immediately end with the cessation of that Wyndham ownership. I'm sure that someone here knows with much more certainty exactly what happens to RCI membership if / when the
only property in the owner portfolio is a Wyndham property and that Wyndham ownership (and the associated automatic RCI membership fee payment) ends.