Moulding the front end of a lotus 23b. 

Where would be the ideal spilt lines for the mould? 

Maybe the it could be one single split line right down the centre line except that it would need to be done without the that hole in the front (fill it up for making the mould) and then have a loose piece that screws into the assembled moulds to create the hole??

Or it could be split into three pieces with a split line down the top centre of the fenders/above the wheels and through or around the headlights?

I don't think either of those ideas will work. There are returns front and rear, also the top of the head light recess has an 20mm return