I'd suggest just updating your driver and putter for now. I've shot 60 or under on Bethpage with the Tour Starters, the Raptures, and the G10 pros using the R9 TP 9.5 driver. They are all capable clubs. The G10's will miss wildly if you're off the mark by a bit, but the "beast" is considerably less if you're on the mark. The Raptures and the Tour Starrters have the same forgiveness, but the Raptures have a slower meter. If you use the GI-D balls in conjunction with the Raptures, its almost too slow.
There's alot more to consider than I'm going to write here but in my opinion, baby steps in updating are the way to go when you don't have alot of time or energy to play alot. The biggest thing to consider is if you've really maxed-out the potential of the clubs you are currently using. If the answer is No, then stick with them, and give yourself some longer drives and more accurate putts. That in itself should shave off a few strokes from your game.