The 710 spurs and pinion are based on 0.8 module gearing which has finer pitch than the spurs and pinions of the 705. From what I can see, they should theoretically fit as the clutchbell looks like the same as the one used on the 705. The one way bearing hub for the 1st gear spur looks the same too. So does the white 2 speed clutchshoe.

Do 705 spurs and pinions physically fit on the 710, that I would have to leave to Rene or Julius to comment. But if it is indeed possible, you need to use 705 spurs and pinions exclusively on the 710 to get proper mesh.