GSX-R 750 – Change engine or new bike?

Moinsen, I’m looking for a new bike. Now it’s the case that I came across a nice GSX-R 750 on the Internet, but with bearing damage. Year of construction 1997. You probably don’t get around a motor replacement. But it’s relatively cheap with 1300 euros. Now, of course, I’ve made a smart decision and a “new” used motor is around 900 euros. So I’m lying at about 2200 euros “material costs”. My question therefore, does it make sense to start a motor replacement? – How big is the effort? – Would you let it be done in a workshop. How much do you value the costs? Or would you say that you should generally resort to a complete “healing” bike? Thank you for your answers Best regards