Sounds like a plan. You can study a bit: G&L's are going up, Mustangs were going up. Music Mans are worth a fortune now. Tbirds too. You never know, but I guess you won't lose money.
And even new basses: Japanese Comp Mustangs from the '00s are over 1200 euros at Reverb. I bought mine for half of that. I bought a MIM P years ago. Those were 450 euros new, new Players are almost 1000 euros, so I guess you can sell the old one for 600.