sqwerti, The 2.8 frames are all alike and were OEM equipped with most every Shimano group and without double checking, Campagnolo Record. The 2.8 was the basis for many of the later CAAD designs.
Look for 8-10S compatible wheel sets. Velomine has some nice inexpensive sets. A 13-23 or 25 cassette works well with standard chain rings up to moderately hilly terrain.
Have a fun build and learning experience.
Brad