Thanks for your input, but I can tell you Bride Rails will not fit fake Brides.

Over the last 2 months:
I had sold a pair for Bride type RO seat rails recently to a guy in NSW for his 'Bride Cuga' and his seats were totally off.
Also sold a set of Bride FO seat rails for an STi recently and they didnt fit his pair of 'Bride Zetas'.

There are a few people selling universal rails that would fit Bride seals with elongated holes on both front and rear so that the bolts can fit through.

Here are some of them:
Bride Style Seat Rail Side Mount Right Skyline R32 R33 R43 Nissan JDM Drift | eBay

A lot of people selling rails that would fit both Bride and recaros as well:
RECARO,BRIDE,SPARCO,MOMO seat mount - Nissan Silvia | eBay

Guys, I have done my best to list out the differences between real and fake Brides seats and Seat rails. I have had countless encounters with this issue over the last couple of months.

All I can say to you is, if it is too good to be true, it is usually not. Bride seats and Bride rails are manufactured for strength and durabilty for race conditions. They are designed for your safety and if you think you scored a win getting a cheap deal, then I would advise you otherwise because your life and safety is worth a lot more than that.