Thanks guys ! much appreciated !
Yes Koan somes parts are compatible on boths, miata or 323/protege/familia, BP05, BPT, BPD...the BP engine was used on somes Mazda platforms.
gt-x and gt-r are more rare, and they have a huge problem, it's the gearbox made in chocolate ! like the FWD G-series gearbox too btw, so big modifications on thoses models are quite rare because parts are expensive, hard to find and the modifications for being quiet with the gearbox it's Xtrac gearbox or toyota conversions but require big modifications (frame etc).
Let me upload it with a other images uploader
So here's my mazda 323 bg swapped with a bpd by myself, my learning/project car.
And my 450.000km daily driven 1.7D PN mazda 323 BG with somes GT, jdm and edm goodies.
I hope the pictures will work this time !
Let me know miata lovers !