I don't know if the ETA and miyota cases are the same, but definitely the movements do not have the same stem height. There are possible work a rounds for the more talented watch smiths, but I think most are compromises at best. Ideally stem height and case should be carefully matched. Also since stem height affects crown (or winder) height it can be a small tell if the crown is too high or too low on the case side.
Miyotas are tough workhorse movements with a bare minimum of finishing. 2824 is a work horse ETA movement and should last more than one lifetime with a little care and servicing now and then. The Chinese clone 2824 is a little less in quality of materials and finish, but still a very respectable movement. The 2892 is I think the movement in the genuine watch, so if it is in budget it may well be a very good idea to get that. However as @kernow Said a Swiss movement in a rep watch is likely to be a used movement or two cobbled together with some Chinese parts. Better to go for an honest Chinese movement and maybe upgrade to a known quantity Swiss movement at a later date. I think I remember Ssteel fitted a 2892 in an omega rep with a Chinese 2824 for @kernow. There is some similarity in the two, but 2892 is a finer movement.