New Member with Obscure Questions

I purchased a restored 1952 AC B high crop Thomson Conversion literally two days ago. The guy that restored it did a really bang-up job on it. I've always been interested in antique tractors and couldn't pass it up. Mainly wanted it to pull a trailer for parades and to pull a single plow. This tractor came with the wishbone bracket but did not come with a draw-bar hitch or any implements. I am thinking that I either want to set it up for a 1940's style plow to pull or for a hand lift plow that has the lever near the operator. 

I have come across some original drawbars with mounts on eBay and am surprised how expensive they are. $350-500! These still need sanding and painting. So, I am wondering if there are any people out there who make and sell reproductions of these setup's...? I've checked Steiner and Tony's Tractors but all they have are the 3-point setups. 

Secondly, I am wondering if any of you know what the purpose of the L-shaped bracket is that is mounted directly behind the fuel tank. I looked at pictures of restorations online and I see that some didn't have this piece, and some did have it, and some had some other variation of it, however, I never see anything mounted to it or it serving any purpose really. 

Pics included in this post for visual reference. 

Thanks, in advance for all of your insight!