17" Mille Miglia Cups on a standard beetle

[matara]

Hi, I have a 61 Karmann Cabrio that is currently sat on a 68 IRS chassis. I am thinking of putting porsch pattern disks and hubs on the car along with CB dropped spindles (ball joint front end).

My question concerns wheel offset, spacers and Mille Miglia 17" Cup Wheels. Can anyone tell me what offset I should use as the dropped spindles will increase track! Can the offset compensate for this with effective use of spacers.

Also is 7.5Jx17H2 suitable for the front and 9Jx17H2 correct for the rear?

Thanks

Steve Moran
Sydney, Australia