Mike,
wow, that post was three years ago. The topic of steering wheel adapters is a rabbit hole that you can easily get lost in. I wound up talking with Reilly on the phone to offer him different options.
There are numerous other threads on the steering wheels and adapters on this forum . Doing a search should provide more details
The easiest, although not cheapest option is to first inquire of our vendors if they have a splined adapter for the wheel of your choice.
There is a capri specialist vendor who offers a splined adapter, the intermediate adapter you need to match different steering wheel bolt patterns, and includes your choice of a Grant steering wheel.
contact Norm at teamblitz. He is very responsive to email inquiries.
he has dealt with many Pantera owners and is very nice to do business with
Larry