Buy a used Tuono V4
Aprilias depreciate, which means bargain pre-loved buys – fit V4s can be had for a little over £5000
All Aprilia V4s rattle on start up. If it doesn’t quieten down then the hydraulic cam chain tensioner is probably buggered. Aftermarket pipes and wiring can cause Can-bus errors.
Test all electrics and look for a misting dash on early bikes.