Without understanding what you mean by “self”, I am afraid that you may misunderstand what I will say…However, I will try…
Since you asked “Is it possible to appropriate the Aggregates as self, and still not have Self-views?” …
Because I see “self” is just this “I, me” without worrying if it is permanent, impermanent, stable, exist,… or not. That is the “self” that I can see and experience. (That’s why I am afraid that I may refer one thing while you see other)
To me, self view (or identity view) is a view that makes us believe that form, feeling, perception, mental volition, consciousness is/are “I am, mine, myself”. Note that mine, myself implies “I” in it. (My view is unique, strange and not orthodox, so if you do not agree with this view then you can stop here. No objection)
A stream-enter no longer has self view. This means that he/she can clearly see and understand without a doubt that there is nothing that he/she can refer as “I, my”, or he/she is no longer believe that form, feeling, perception, mental volition, consciousness is “I, my”. However, he/she still has a body (form), even though he/she understands that the body he/she is using is not “his/her body”, yet he/she still need to use/appropriate that body to continue his/her holy life.
Therefore, when one no longer has self view, one could still use/take form for other purposes (like to work on other fetters…) without ever believing it as “my body”. However, if one takes/appropriates form (body) as “I, me, my” then one must have self view by my understanding of self view.
If you refer to “self” as a permanent, stable, fixed entity that does not exist (or indefinable) then you will need another answer.