To build or not to build (meaning sell)

If I do decide to build it, it will not be original as in restored, it would be a restomod build. The problem I have is that I can clearly see the end result in my head and know the path to get there which makes me "think" I should do it. However reality and past experience tell me that it will be a lot of work and not nearly as quick or east as my imagination sees.

I was about 14 when I got into cars seriously, my closest friend at the time was becoming a Chevy guy and I was pretty neutral but as kids of that age in the time, I got into models and one of the first (if not the first) model I ever built was a FB Cuda. Over several years I put a engine in it from a TF dragster, straight axle from something else, etc. I still have the model to this very day (a bit worse for wear). Now, I have no intentions of trying to duplicate the model (no gassers or blown hemis for me) but the body and more importantly the interior design still speaks to me; and there lies my problem.

I have always had a very hard time getting rid of my good cars despite many people telling me I should do so for one reason or another. I have had my 70 Challenger for about 20 years and have probably driven it like 50 miles total; but again driving them is not my passion, building them is.