This is why we have Bassbashes...:) Depending on where you live, it might be worth asking anyone attending to bring their 5er jazz bass for you to have a go on. The market is saturated with choice - in addition to Sadowsky and Lakland there is Sire, Goodfellow, FGN, Moon, Markbass, Blade, Spector (super fat necks though) amongst many many others. Sire has been somewhat of a game changer in recent years and are fairly accessible so would probably be first of my list to try. Followed by some of the japanese brands such as Blade, FGN and Moon.