There is no need to invent new voting systems. STV has been in use in Ireland since 1922, and even earlier in Tasmania. Various MMP models have been in use in Germany since 1946, including the open-list variant in Bavaria, the list-free ("near-winner") variant in Baden-Wurttemberg, and a variety of mixed models municipally (Hamburg and Berlin have been particularly inventive.) In the past 20 years several other countries have adopted one or other MMP model.

No MMP model allows a party to decide what candidate to give its votes to after the fact.  

Scotland's regional MMP model, even though it's a closed list model, allows independents to stand for regional seats as well as for local seats. A couple have been successful regionally, and a couple locally.

In almost all MMP models you vote for the local candidate you prefer, regardless of party, since your local vote will not hurt your party even if it is for another party's local candidate. This "ticket-splitting" was invented in Germany in the 1950s to make local MPs more accountable.

And STV means you can rank candidates of your party first, thereby voting by party, or you could rank all the women ahead of all the men, or all the candidates from a certain locality first, or however you prefer, penalizing no one.