I figured I should post a follow up to this. I have purchased a lot of gear since my last post. The price tag is a little nauseating, but I think I made some good economical decisions. I am looking forward to recovering from/forgetting about the purchases and just moving on to the part where I enjoy the equipment for years to come.
I ended up going to a dive shop and trying on some wetsuits. Considering that I had never put on a wetsuit, this helped a lot to get the feel for different sizes in different materials. The shop did not end up having my size, but they got me close enough to be confident about what size I could get into. I ended up making my purchases not at the shop, but there are other things I will be buying from them and I am getting my AOW through them so I didn't just use them for a dressing room.
Here is what I purchased for my first gear setup:
DGX Gears XTRA Streamlined OW Reg Package
Hollis ST System - Used (I saved some money buying this used in "demo" condition)
Henderson Greenprene 5mm Men's Jumpsuit 3X-Large
Henderson Thermoprene Pro Men's 7/5mm Hooded Vest 3X-Large
Henderson 5mm Molded Sole Zipper Boot 13
Henderson 5mm Thermoprene Gloves X-Large
DGX Gears Ultra View Frameless Mask
Dive Rite Snorkel
Hollis Open Heel Dive Travel Fins F-2 X-Large
I run hot, so we will see if this works, but by thinking in getting a 5mm suit and 7mm/5mm hooded vest, is that this configuration will allow me to just wear the 5mm suit in inland lakes that wont be as cold as Michigan but still need some protection, without overheating.