Keep it... though as soon as you stop using it, it'll all seize up!
I've got the same dilemma with my '55... though it was quite leggy when I bought it (on the basis that "Alfa unreliability" was a myth and I was going to prove it...... so there!
) and it's racked up 221,000 miles now... though being a v6 that's not such a big deal maybe, as a T.Spark doing it.
The beast has gobbled up a mountain of consumable parts over the years.. and I've had the odd breakdown (TDC sensor, a split fuel hose and a hose disconnected itself inside the fuel pump - reattached to sort it) but apart from the head gaskets, the motore is "as from the factory".
I'm most impressed that (somehow) the rear dampers have not worn out (Boge) and the number of things I see going wrong on other cars just haven't affected my car. One pair of front wishbones.. just 2 wheel bearings and one rear swing-arm bearing in all that time. Wiper motor and those "square" wiper arms for instance, are all orig'.
"Most likely to die" used to be the radiatore... since he was peeking out through the bottom of the grille but when I put the second replacement in there I fitted some alu' mesh across the slot and the 3rd rad (as it is) still looks pristine...
Now on Purple Heart Corner is the fog- and headlamps. I've become a fan of those little perspex covers (official accessory) that I have on the '45... (headlamp glass immaculate) whereas '55 never had any and I've lost 2 lenses and a foggie to motorway shrapnel..
Oh.. and the second windscreen also has a dent in it.. It's pretty nasty out there.
At the moment I have a rear brake bias problem and shagged rear sub-frame (collapsed/rusted bump-stop) so I procured a Fiat Coupe sub-frame and a set of bushes (part Multipla, part old-Bravo) to replace the bushes..
Just waiting for autumn to dismantle that back-end.. (The Younger Mrs S. will excuse me from DIY and household maintenance tasks..
) fit new brake pipes, bearings and any other part I can still get.. and keep the beast going. I don't know why anyone else would want it.. nor would they know what to do with it...