I don't consider myself any kind of expert, but I'll take a stab at helping. (Assuming that you are already in a position to tune your own cal).
First general advice is reel it back. Get things ironed out on your minimum boost and go up from there. Most advice I've seen would suggest that 12-13 AFR is lean. I'm trying to shoot for 11.5AFR @WOT myself.
Do you have a link to the injectors you bought? Their 65lb/hr rating is likely at 43.5psi where the MP +40s were supposed to be 52lb/hr@55psi. Some have found their +40s flowing more than that. If your new injectors are in fact rated at 43.5 you can use an online calculator to figure out what they flow at 55psi. In MPTune you can create that as an injector size, use that to scale your cal and bump your fuel pressure to 55psi (static) and see how the car runs.
Did they come with any "latency"/"dead time" data? These are likely different than the stock values in the cal. If they came with the data or if you can locate it, you can use those values to edit the cal's FuelBatteryOffset table. This could have been a factor for your rich idle.
Have you read through the old BoostButton wiki? Info on creating a base cal
https://pcm.neons.org/doku.php?id=base_cal_setup