I saw a stock IC that had a 2 1/2" or a 3" neck welded on it by Mease,it was advertised as an IC that you send in to buy complete,and/or send in your old one for a core $100 money back or towards the re done IC,,I didnt get the name/address of the company offering this,,who do I contact about this item and do they just sell the neck so I can weld it on myself---can anybody lead me in the right direction here??