Another thought. If you send Peter Mulberry an email. He is brilliant with Morgan suspensions and has manufactured components to overcome their foibles. For instance he manufactures blocks to centre the rear wheel in the rear wing. Morgan were buying the blocks from him, until he said they should get the locating pin of the spring manufactured in the right place. He said he did himself out of business. He also does Panhard Rods, anti tramp bars etc.
Best to send him an email. He is very quick at replying and breaks your enquiry down, answering every aspect.
If there is a problem with offset he will know about it and give you advice.
The link is below
contact-us 
