Hey Rob, be sure and measure from the nock groove to the nock groove and follow the bow's contour......not straight from tip to tip. That will give you the actual length you need for determining string length, then subtract 3" from that measurement. That will be the length string you need.
Some guys say to subtract 4" but my experience has been that is too short. Maybe it's just my particular bow, but subtracting 4" seemed to be a bit too short and I can always get another 1/2" shorter out of it by twisting. You will need to add twist anyway to get the proper brace height.
Maybe somebody here is familiar with that particular bow and will offer some better advice than I can give, but all recurves are pretty much the same when determining string length.
You can also do a search on here for determining string length and get loads of posts about it. I see this question come up about once a week.
Just go up to the top center of this page and just to the right of where it says "My Profile" you will see the word "search"......click on that and use the search engine provided for searching the Trad Gang forum for past topics and info.
Hope that helps.