82 Bianchi ECO Pista, Pake, Kilo TT, some *** bmx i found underneath an old house
Don't get me wrong, the clearance between fender & downtube is almost non-existent, maybe .25" at most. If I hit rough patch of pavement, I usually have to adjust the front fender so that the stays don't rub the tire sidewall. That's how close the front is to the tire. But it fit's, and I just did a 40 mile ride with them with minimal issues.
70 x 25c Conti Gatorskin Ultras + SKS Raceblades on mine.
The raceblades are not the full fender variety. They fit behind the seatstay bridge and the fork crown.
I don't see how full fenders could work on this frame. Especially in front, there's about 4mm of clearance between the tire and the fork crown. It might be possible to run a full fender in the rear with the hub knocked all the way back in the dropouts.