There are some subjects everyone will chime-in on, AI chamberings and handgun scopes must be at or near the top of that list.
I have an NC Star 2.5x30mm fixed power, it's passable and use it much more than a Simmons 4x32mm. The Simmons has a narrow field of view and the eye-relief seems more critical. These two are 2nd to 3rd rate at best, the Simmons has better glass although.
I picked up a used 4x28mm Leupold a little over a year ago and have been happy with it, it has a better field of view than I expected.
Most useful for hunting has been a Leupold 2.5-8x32 vari-x and a Burris 2-7x32, they are equal in field of view, eye relief, clarity, and contrast. However the Leupold is finished in matte silver, and the inside of the tube is also finished in silver, which can transmit glare much easier.
I also have a pair 30-30 Improved chamberings, Winchester brass has been the most consistent, although it doesn't have as much internal volume as Remington. No improvement making 30-30 from 375 WIN brass either.
A standard Lee Collet Neck Die can work, but when your loads get too hot you'll need a full length sizing die to get the action to close. Lee makes these too, about $25 at Midway. As far as the best I'd have to say Redding.
I don't know which frame you have but if Pachmayr "Gripper Decelerator" grips are available, get em.
In closing I'd recommend not buying a 22 bbl. & scope for practice, & instead spending the extra money on a Leupold 2.5-8 vari-x(you'll use it at minimum power and the pay-off will be more field-of-view), and a grip that helps with recoil. 30-30 ammo is cheap, and reloading will make it better and cheaper. So just practice with the 30-30AI.