I would agree with the track @Trevix1042 is on with one possible change:
graphics card - look at Graphics card comparison. You can possibly save some money by considering AMD or Intel cards at about the same price or less and get comparable or better performance. For example,I have an rx 6650 xt which would save you some money and it provides 60 fps at 1080 p on one monitor at most airports at high to ultra settings, especially using FSR2 and AFMF. The Intel A770 may be a better choice. There is a good thread about it on this forum that might be worthwhile readingA770 Thread. Of course, ray tracing, to be introduced in MSFS 2024, may be a consideration for you. That’s better on the 4060 and the A770.
The move to a 1 tb ssd is important in my opinion. I’ve found it necessary for MSFS.