It's a poor solution, but better than nothing. The plowing profiles are welded with the L pointing forward and down (to ensure rising on top of snow), the holding profiles can be welded any way. They are at 1/3 of length and 2/3 of length respectively.
P.S.
A note: if one has automatic transmission, or continuously variable transmission, one should not pull things.
With manual gearboxes, fixed reductors and direct drive, it's OK. The car is indeed blurred for privacy. :)
It might not be relevant to the conditions at your place, but in the city nearest to where I live (Tallinn, capital of Estonia), there is a library that lends out tools. It's the Pelguranna library, a branch of the Tallinn Central Library, and the only English description I could dredge up is this one:
https://keskraamatukogu.ee/en/kojulaenutus-2-2/toolbox/