I've got an 82 original stock FJ40. I purchased a complete MT steering setup-pump, box, reservoir, hoses etc. for the conversion. Should I use this or try to get an OEM system ? This year has power steering available. I want the vehicle to retain its originality to keep its value. I also know that the OEM setup is very hard to get. If I should go with the MT, is the better choice the GM pump VS the toyota MT pump?