075 needs to be batch produced in order to be really useful for its purpose. As I projected/advocated, 6 x 075s/LHDs are needed by 2025. That's the critical mass to be impactful for the kinds of scenarios that China is likely involved in the next decade or so. This ain't the time when the first 071 or 052C were produced when China was tentative and experimenting. And, one 071 costs about the same as one 054A, one 075 less than one 052D.
Of course, the real production schedule will depend on capacity, personnel training, any upgrades, etc. It may fluctuate somewhat.