Kmorris -
at 5'8" & 210 lb, I was once subtly bullied into buying expensive equipment that just was not right for me. Then the whole kit & caboodle got stolen out of the back of my car & I had to start over....with much less money! I lucked into finding the Henderson Hyperstretch suit just as it came out. See what sizes your local shop can get; they are flying off the racks because they stretch like no custom suit ever could (I know; I had one; cost me more than my wedding dress). ;-0 Immediately, I felt like a better diver!
About the BC - I had a Zeagle ranger for the same reasons already mentioned. As an integrated, it was just too damn heavy with 32 lb of lead in the pockets, so I experimented with dividing the weight & distributing it around my body (make sure your buddy knows where all the ditchable weight is). The darn thing also traps air which made me sail up once I reached my 15 foot safety stop. The weights are also a pain to rethread when you dump them (but, for God's sake, DUMP if you need to; just practice it a lot because it's tricky). Now I have a larger size of the Aqualung Wave BC, a bone-simple jacket-style that cost less than 1/2 the price of the Ranger new. It is a men's model. Now I wear only 23 lb of lead! (If you try on a jacket style, put it on over clothes to simulate your thick wetsuit & inflate it, as the fully-inflated jackets will squeeze your liver out if you buy them too tight!)
Losing my "Fat Girl" gear was a tragic financial loss, but all my new stuff is better for me. I see plenty of us chunky gals all over the beaches of SoCal & our money is just as green as those thin girls' so I don't know why those girly pink things are still only made in Small, Smaller, & X-Small (unless the companies are afraid we will make them look bad)...sorry, my resentment is showing! Diving per se won't make a person skinny, but having great times with great friends makes life better at any size. If you faithfully kick your laps, your insides will glow with health & I hope I see you towing some skinny chick to safety someday!