RCS would do great too. Side by side pics of the 5 and 7 cylinder radials. I think the RCS line is made in Italy and Moki in Poland.
There also may be waiting lists for both. I have seen good deals come on ebay for the Moki's.
MokiView attachment 103795RCS View attachment 103796 MokiView attachment 103797RCS View attachment 103798