Wow that first one is in incredible condition I have just done a translation of the spiel:
The barchetta THB CMM LAC is one of the 3 original works cars, which have been set up brand Cup 1992 for the barchetta. The vehicle was used only once, in Monza on 27 June 1993 under the driver Giorgio Farina. The vehicle then served as Stradale trial under engineer Gamberini. After an accident caused during test running "LAC" should be, rebuilt Italian Astra Racing team which however, was not realized. The vehicle was acquired in 2001 by Neri Danieli from Concordia mo. In July 2002, the vehicle was purchased by me. After a documented rebuilding the vehicle is again in the original race State with the No. 18 following work were performed here, where all parts were renewed, come from the remains of Maserati and new parts were: the complete chassis (damper), Springs, joints) and the brakes were renewed. The engine was rebuilt with original parts and a new transmission. Xenon headlights were mounted in the front cover to drive may be on the road. They are not visible if the yellow sticker on the vehicle.
It just looks like new....
I think the second one would be much more affordable for sure; I note also the engine No. on this one is 17, given that the total run of production was 17 is it reasonable to assume this is the last one?