Hope this helps anyone looking at a m2 setup.
Not trying to hi-jac your link just as much info as I have on these guys and my setup.

If you do ask for William. He is the nicest guy and his knowledge base is immense.
I dont know the guys @ Rod and Customs personally or have ever met them but I will @ events this year.
So no kickbacks or discounts on my end. lol

Case and point. theses kits are designed to fit a wide variety of engine configurations.
I told them what engine I had a 5.0 based 347.
When I got the kit the oil pan they sent wouldn't work with my main stud girdle.
William looked around and called me back with Part #s for a 7 qt Canton that would fit the cross-member, then told me to order from Canton b/c @ that time he wasnt a dealer didnt get a discount from them. I order from Canton Directly using those part #s for pan and pickup tube he gave me. It fit like a glove.
It would cost me more from him.
Now they do carry Canton. Also he helped me out with the master and proportion block set up.
Cant beat these guys.

I will see how this thing acts with my 5 leaf mid eye grab a trac springs.
Eventually I will step up to there new 4link setup in the rear.

Another point that was made if you dont trust your welding go with the Marntz kit tack it in place then cal la welder.
It has only a few points and its own frame structure.
I started to do that with my R&c kit but the instructions had me within a 32nd once I measured on a x from point to point.
A 5lb sledge couldnt budge my tack welds a bud of mine gave me good advice crank up the heat (lincoln hobby Mig) And 3 passes later a certified welder saw it and told me if he did anything it would just look purdier. lol

 

Nothing wrong with a M2, their quiet easy to put in. I would spend my money on the M2 before I just bought a R&P setup. They drive well also.

 

That's what I figured, I looked at the directions and they don't seem overly difficult to install. They're also in the same price range as a good rack and pinion so I figure for the money it would be better spent doing that.

 

You have to good at welding to put one in if your paying someone to do it get pricey fast.