Thanks for this great DIY!
Went ahead and replaced the ashtray today. All went well. No dents, no chips and no issues with the wood trim.
If you are not going to use the lighter anymore - cut the metal part that connects all brown wires together - you wont need to worry about how well they are conected and hold together.
Used simple LEGO part to make the spacers - just cut it in half.
All in all - nice play for a cold Saturday...