Firstly, Grab your favourite driving trousers....
Get yourself to a local fabric shop....
Measure out 2 lengths of fabric about yard and a half long each.....
Wrap into a circle and stich along the bottom and along the side to make a pouch....
Cut a hole into your trouser pockets and stich your newly formed pouch onto the bottom....
You now have the correct trousers with deep enough pockets for an early Sport.
Secondly, take another pair of trousers and cut holes in the pockets....these will be your second correct pair of trousers for an early Sport....
In all seriousness, got for the latest model you can afford, but be warned, they are built in such a way that DIY repairs are seldom possible, and any dealer repairs require a horrendous amount of labour...reports are you pretty much have to lift the body off to replace/remove anything!!