My sincere advice is to seek out learned divers in your area that are doing what you want to do. Get properly trained for what you want to do as well. True wreck diving can be a deceptively dangerous activity and need someone that has been there and done that. I dive the wrecks off of the New Jersey region mostly, which are largely comprised of large busted up junk piles in deeper and colder water. There are a few that offer some challenging penetrations and if you do not know what you are doing you won't last long.
When gearing up for Wreck diving the additional equipment needs to be planned for, kept simple and streamlined and accessible. While there are some similarities, wrecks are not steel caves and open ocean wreck diving is a very dynamic environment. One of the common mistakes I see in this area is folks with a SMB attached to a small finger spool with 50'-75' of line. That might be nice for a drifting along safety stop in Cozumel, but will have disastrous results off Jersey.
Find an experienced mentor and get in the water.
And for the record - broco torches are a LOT of fun underwater. IJS