Work up a blog page where you can send folks via www, then load it up with LOTS of detail pics of every part of the car, top and bottom. List everything you know about the car ie; engine parts and builder, trans and builder, rear end and builder, chassis and builder. Is the chassis/cage certified and for what sanctioning body and time/speed rating. Performance numbers ie; time slips with ET/speed.
List the car here on RJ in the classifieds, with a link to your blog/info page and contact info.
If you post some pics and basic info here in the forum, we can give you an idea as far as pricing. You STILL want to list it in the RJ classifieds though. And please, if it is sold through it's listing on RJ, please make an honor payment to help keep this site open.
Last but not least, our condolences to your family.