Yeah, wait until L59 for irons.
If you have the credits, get the L48 Mizuno 3-wood and use that as your driver until you actually need a long driver. Or wait and get the L51 Callaway 3-wood and use that as your driver. The Mizuno is a great club, so you'd have a great dedicated 3-wood after you eventually upgrade your driver. Same goes for the L51 which is also very good.
The L55 TaylorMade driver is the one to get if you want to upgrade your driver by then.
The L50's MAXSpin wedges are worthy upgrades. Quick meter but inexpensive and very good. They're not as good as the L70's(&L80)Vokey wedges, so some players wait or upgrade again when the Vokeys become available. After you get a set of irons with a decent 3-iron, you can drop the hybrid and use three wedges (56°, 60°, & 64°).
For balls, 3.5 meter speed is when a slower meter really seems to help my play. L1 Callaway ERC Soft (Slow Meter) balls worked pretty well for me. They're 300 credits. A lot of people like the L33 Callaways for 250 credits. I played the L43 Callaways quite a bit which are also 250 credits. Also played the less expensive L11 & L13 Srixons some. I played the WGT Distance Slow Meter balls quite a bit, but it only has 1.5 durability and that was noticeable. The WGT Spin Slow Meter has 2.0 durability, so you might want to give that one a try.