End of a 260's reign, Welcome 403!

Although my little 260 has served me well this last few years, it is time to let her go. I have ordered a rebuilt 403, and have gotten my hands on a set of 1972 350 heads. These have new valves Already:D , and I will hopefully be getting my new camshaft soon. And, the best part is, My little 260 will fit in my 84 Cherokee! Just got to swap the transmission. So, Anyone know a company that build race t200-R4s? With this engine- Im gonna need OD! Unless someone has a better trans that willl mate up? :HMMM: