There would be no need for an adjustable timing wheel with a Maximus since it is really applicable to those with a Power Commander (the PCV can only adjust timing and fuel above 2500 RPM so the timing wheel is used to adjust timing below that level.)
The PC-V can do fueling everywhere, you just cannot use it to change the ignition timing below 2500 rpm. The timing wheel adjusts BASE timing (that's all over, not just at a specific range of rpm).
It depends on what you're looking for. What do you want to change about the bike? There is nothing like a perfectly tuned bike... very important... and will improve power, drivability, and fuel economy too.
On the other hand, the 31 tooth pulley is a final drive gearing change and is beneficial in a completely different way. If you feel the bike's gearing is too tall (need to downshift all the way to 1st at intersections and 6th gear is useless below 70 mph) then the pulley will be something you'll really like.
It's only money... you get paid again next week, so it's not like you won't get any more money.
Here's a suggestion... walk into your bank and tell them you want a 'no interest for 18 months' credit card. Get what you want for the bike and as long as you pay it off in 18 months you get to use their money FOR FREE, leave your money where it is, and boost your credit score in the process. Even if you get it all,Maximus w/tune, pulley, and LSC cams too ($3K)... It would only cost you $167/month to pay it off in 18 months.
Life is far TOO LONG to suffer though it telling yourself "No"... when your heart says "Yes!". Spend a couple of years waiting... or spend a couple of years ENJOYING.
2006 Victory Kingpin
Lloydz 116" Stroker/Big Bore, .495 Cams, Torque Tubes Airbox,
RPW Thor Pipe, Lloydz ECU Flash, PC-III, PTS (-2), Rivera
Primo Clutch Spring, 31 Tooth Pulley w/Buell Belt.