If you've already got the car, has 'good bones' and can do most of the work yourself, might be worth a punt.
If it were me, I'd likely give it a go, because that's essentially what I'm doing with my car lol. Like most classics, you never really get back what you put in time and money wise, but that's not why most people do it (I tossed a bit of money into my old Wolseley landcrab, but I had a great time with it).
\not sure if that was of any help, but it's always nice to see another early car on the site, they seem to be a fairly rare breed now!
1987 3.6 Auto Sovereign 506111