If you can wait for the winter sales, as I did, I picked up a 100% thinsulate suit, not at all bulky like the old ones, I can even get my leather jacket on over the top of it (I am slimmer than you : ), for $100.00. Easy to get in and out of and has enough zippers that you can get some ventilation if it is not too cold out. I can handle about 30 minutes on my motorcycle at 18 degrees without severe discomfort. I do have a handlebar windshield but at 55-70 mph, there is plenty of wind around me.
My litmus test for the suit was to find one that I could not blow through the outer fabric. Some suits advertise wind resistance but you can feel your breath through the fabric. This does not work when travelling at any speed. The ones you can not blow through are also waterproof if the seams are sealed.
You may get some wierd looks as you are kissing the suits, but hey, this will be a long term relationship, you need to establish compatibility. : )