As a retired aerostructures engineer, and finally having time to enter the worlds of Kerbal, I am interested in my own self directed research, development and exploration program. That is take the existing components and test them (i.e. engine in a test stand to obtain performance data, test launch escape systems, component arrangements and effects, etc.), starting with rudimentary engines (a V2 parallel), working through basic engineering and science progressing through to Kerbin orbit and science collection... I think you can continue with the path I am considering...Vikerbal, Kerssini, Kerbal Horizons.
Is this a pipe dream? Any suggestions as to add-ins or extensions to accommodate the R&D side of things...
Looking for experienced guidance, some sly misdirection and whatever falls my way.