i know the JTB-440 from jay some thing is crap. i am tight on cash i want to do this buy the JTB-440 bass. put in better pickups then when i have money buy a mm body like 78 or some thing thast a good year and buy the neck a good year and put all the JTB-440 parts in a musicman and replace like the turnners when i get some more money and the bridge too. i play slap and funk alot and my crapy bass i have now for slapping.it sucks . is this a good idea.