Bolt in frame connectors

Holy crap I forgot how much those things cost! Now I remember why I welded my own in! 200 + $300 +Insanity!
I think I went down to the steel yard and got a piece of rectangle iron for $30? My $89 Harbor Freight welder$35 Harbor Freight helmet and $15 Harbor Freight cutter/grinder. I actually cut a little window into the front of my rear subframe and slid the metal connector inside of the subframe in the rear and welded it inside.
But if you're trying to build something to some kind of particular track rules I reckon nothing like this would work for you.
My-2