Buying a rectifier regulator

[Sparky36]

I want to update the electronics on my 1978 cb750, a cafe build in progress.  I noticed the silicon rectifier had some melted wire coatings so I figured I'd start there.  I've seen new regulator-rectifiers online which I'm interested in.  I'm assuming that this one part will replace both the silicon rectifier and the regulator which according to the FSM are two separate parts.  Am I correct in this assumption?  From looking online it seems that people sometimes (mistakenly?) use these terms interchangeably.  I don't want to buy this part, which is close to $100, and have it only replace my silicon regulator.

[Lucky 1]

I bought a combo regulator/rectifier from Ricks Motorsports.

It was two separate parts but now it is combined into one unit.
Ricks's Motorsports unit is  plug and play.

The rectifier makes 1/2 wave AC into  DC

The regulator regulates how much is stored in
 the battery and how much is given off as heat.

[Re-run]

This place makes units as well http://www.oregonmotorcycleparts.com/index.html  A combo unit works best.

[Sparky36]

Great, thanks for the help!

[Dw07u]

nice, hope you find a suitable unit!

You have some photos of the build so far?