That actually looks like a good deal. Like has been said,springers take a lot of practice to get good with it and the higher the power the more challenging it gets to shoot accurately.
8 of the 10 Hatsans I have are refurbs, all are great shooters and have had no issues with them over the years. 135 is worth it for the wood stock. As far as the Vortex swap there was a recent post that IIR had the drawings and parts needed to do.