FWIW I am a wedding photographer and honestly, what you're offering won't sell very well, at least not in my market. Brides in all market specturms here compare the number of images and (possibly secondly) the qualtiy of those images relative to the price. This is true whether they're paying a bottom feeder $600 for a disk or local big name $7k. Who selects these 40 prints and how? The bride will want proof prints for sure. Also, landscape, from my limited experience of it, is almost the polar opposite of wedding photography. Wedding photography is ebbs and flows in its pace and it generally flows more than ebbs. There's very little time to shoot lots of stuff, add manual focus and metering and risk ending up with a grumpy, thirsty wedding party. For many things there are no do-overs, you either nail it or move on and explain it later. The lack of time is probably the most difficult hurdle. I had a bride one time DEMAND 41 different grouping in the hour between the end of the ceremony and the start of reception. All weddings run late and they try to catch up by taking time from you.
Having said that, when I first started wedding photography in 2003 I started in film under a couple of photographers. One used Bronica SQ's and the other Hassy's. They recommended to me to try Koni-Omega's as a started system. They're 6x7 rangefinders, but the M and the 200 have mid roll changable backs. They were pretty popular amugnst wedding photographers in the late 70's through the 80's. You can find them pretty cheap these days. Know fill flash inside and out (many brides want outside pictures at 2:30pm), know you're camera inside and out. As a general rule of thumb shoot 400 speed film (negative, never slide) at least half a stop over. From my exerience a lot of learning wedding photogrphy is about minimizing failure. Once you have a handle on not screwing up, then you can work on folding in some more unique and artier ideas. Seriously, performing at a professional level, consistantly, under an array of horrible lighting conditions, with awful time contraints is not something you just pick up at your first gig.
Also consider that, and I've heard this from a number of professionals, that the artistic images sell your service, but blah group portraits are the prints people buy. Shrug, consumers. Anyways, good luck with your endeavors.