Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
I purchased a pair VE SS seats and had them recovered in period correct herringbone and velour but still a $4k investment (including recovering rear seat). It was quite easy mounting them to the std VK seat rails (just used box section), I spent a weekend trying to utilise the VE motorized rails first but gave up in frustration. I'm just in the process of changing the front head rests to the "scheel" look. The VE seat is really comfortable & has a great range of "adjustability", they are a lot taller than the original VK seat.
View attachment 193197
View attachment 193196
View attachment 193198
View attachment 193201
The correct steering wheel is a 380mm Momo wheel, last time I looked they were fetching + $1,000.00 on eBay (reproduction models). There are 350/370mm wheels more readily available.
View attachment 193199
Above 370mm Momo wheel C/w centre cover (Mazda RX 7 used this wheel back in the 90's).
View attachment 193200
Period correct 380mm VK SS Momo reproduction wheel & centre (note the thumb grips). If you want to be fussy the hub should be painted the interior colour!