As you already know there are several possible setups. The differences are in ease of attaching, convenience of operation, and installed cost. For the storms we get in New England any setup will remove the snow, so it's really a matter of picking the arrangement that makes the most sense to you.
I've traveled that road. For a few years I had a rear-mount, single-stage, pull-forward. Then I moved to a rear-mount, 2-stage, back-up. Next came a front-mount, driven from the rear pto. These days I'm still using a front-mount, but a wider one. In my situation a front-mounted blower works out best.
The newer hydraulically driven units that attach to a front QA plate look fast to put on. There's also a wet kit to attach so I don't know how long it takes to be blowing snow. Hydraulic blowers are spendy unless you already have high-flow hydraulics (like skid-steers)
If your L3240 has a mid pto, a Kubota front-mount might be worth a look. Or, to keep the cost down, you could get a used 5' or 6' rear-mount and try it out a few winters.