Recommendation for Detailer

[larrybard]

Will likely put one of my cars up for auction on Bring a Trailer.  (No, not my 993; don't ask.) Frugal though I am, nevertheless willing to pay a premium for a truly superior detailing.  Any recommendations?

Also, a friend just told me that some detailers are now using dry ice to clean up undercarriages.  Anyone familiar with that, have any constructive views or, better yet, have any experience (as a detailer's customer) with the technique?

Thanks!

Larry