Stitching a leather cover on a 69 rallye steering wheel.

I have a 69 rallye steering wheel I bought off another fabo member. It's not a wood grained wheel. It's in remarkably great shape except the rim hoop plastic is shot. Lots of big and little cracks. It got me thinking why not fix the cracks and just stitch a leather cover over it. I found a place that can do this, but I'm looking at $300 in labor for 6-8 hours work is what they told me. Anybody do this and stitch a cover on? How hard is it to do? How well did it turn out? Is there a DIY kit available where you tell them the hoop outer diameter, and grip diameter and they send you the materials ready to install?