wouldn't it be simpler to just make a second mod specifically designed to use the original API? Better yet i think all Immibis really has to do is simply port his 1.4.7 Advanced Machines to 1.7.10. It's already got the original API's mappings. So all he would need to do is port it. However that in of itself i won't be surprised is the hard part.
Well, what I could possibly do is make an api that makes the experimental api compatible with the classic api...