My Car Is Broken, Badly!!!

So smooth sailing for 2 months car running good and then low and behold.......... gearbox failure!

a bearing on 5/6th gear has gone and I have been told it’s a new gearbox job. thrown a major spanner into the works as I had more power upgrades and brake upgrades coming so now my car will be off the road for the next 6 months whilst I save for a new gearbox. but not just any gearbox......... I’m looking at 2 either a n55 dct m gearbox or trying something that hasn't been done before.... a m4 dct. wish me luck.