Heck of a capable machine, I do agree with you on the good looks of the tractor, very unique size and stability. The recently produced 5035's look to be a little better constructed as it's the flagship for that series, but I would check the routing of the loader lines and any hudrostatic lines (didn't say if it were hydrostatic or not) before it leaves the dealership. 4035 and 5035 fuel lines look similar to me, but hopefully they have made some adjustmnets to prevent fuel line failures, which will take out the most and least capable machine equally. As other posts indicate, my research into the 35 series hasn't revealed any issues with major drivetrain components, just fit and finish things like fuel and hydraulic hose leaks from routing rubbing or paint on the battery terminals.
The good news is that all my 4035 issues have been taken care of under warranty, and with a healthy dose of patience, I'm hoping to get a dependable tractor back after all the issues have been resolved. I don't think anyone gets pleasure from complaining about the tractor they have. Personally, I would rather have had the first 40 hours be trouble free, but hopefully someone from Mahindra takes note and corrects the issues with the 35 series since it's one they produce themselves.
Good luck with your purchase, any chance you'd share the price and some pictures? I would figure close to $40k for a 5035 TLB in hydrostatic.