Thanks for the recommendations from members. Unfortunately, I won't be able to assist the OP in a solution.
For the OP, if you want to go cheap, build a kit yourself. If you are really good at electrical, have the tools, sorting out how to make the wire runs, selecting the right relays (Not incorrect, junk Chinese units) and have 4-6 hours of trial and error building a clean kit that doesn't buzz up the OEM harness. Get after it.
12ga wire that I use, US made, is over .50+/ft, closer to .80, if not bought in bulk. If you build a kit like mine, for a 4 headlight car, you could have upwards of 40 feet of 12ga wire... just wire alone is over $30 before getting to the good tyco-bosch relays/terminals/blocks/shrink tube. Wire from other countries sometimes looks like 12ga insulation thickness with 14ga wire strands. Shady stuff.
If you buy a cheap kit, you would be smart to take it entirely apart, check all terminations, fix them if necessary. Give it a go as long as you have the tools to do the required corrections.
Good luck in your search for a solution.