I 'think' the end costs would be much less that a new CPA 44-1/2 Rifle AND there is the learning experiences along the way tokeep my mind active.
Yes, the 'Fun' is a major part of any 'kit building effort' also.
I remember my Brother bought a Heathkit Color TV Kit and assembled my family's first Color TV and we enjoyed it for many years.
My father had assembled, then disassembled and stored, one of the 'original' Ed Heath Kit Airplanes just before the October 1929 Stock Market 'crash'; a Heath Super Parasol. Which gave him enjoyment at the time and useful knowledge to help him find work through the 'Depression', my parents married in 1934 and had my brother in 1936 so they did have 'fun' in the times.
Best Regards,
Chev. William