WI Given free hand, how much of dalmatia would fascist italy annex?

In OTL fascist Italy was forced to compromise with the ustace croatian regime in the settlement of their dalmatian border, because their mutual alliance with Germany. So in a situation were they were given free hand, would they annex all of dalmatia? For reference: https://en.m.wikipedia.org/wiki/Dalmatia . Or even all of the adriatic coast? Or would they limit themselves to the old venetian dalmatia? Or would they just prefer a friendly fascist puppet croatia an compromise anyway?
 
They'd probably want the whole thing, since Venice's possessions in the region went quite far inland. But while I'm sure a not insignificant portion of the Slavic inhabitants of the region would've preferred Venetian rule to Austrian rule after 1814, support for the Fascist regime a century later would probably be minoritary even among the coastal, urban Dalmatians of Italian/Venetian heritage.
 
If given free reign they would have gone for Roman Dalmatia borders which is not that different from the borders of their occupation zone in Yugoslavia/ISC.
 
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