So as I understand it and I am not an accountant, but there would be the potential of paying tax on the ‘gain’.
However, between the original purchase price, YES
the cost of items purchased and the cost of work put into it (did you save receipts?), YES
and a cost for your time for any work done (what might your hourly rate be? $50 or $75/ hr?), NOPE, absolutely NOT

the likelihood of you actually making a gain is unlikely unless you are selling a very high dollar hemi car and bought it cheap.