Get some Dubro 2-1/4" low-bounce wheels for that PZ T-28. Makes it FAR easier to take off and land off grass. The provided wheels are too small and squishy. And some 2200 mAh 3S batteries. The model can handle the extra weight easily. But have fun. It's a great plane for learning with.
I have been flying mine for a few weeks now. Tore off the landing gear trying to land in 15 mph winds. Glued back on, took right off again.