new master cylinder or rebuild?

Kinda seems like it's being pitched for a lot of apps.

I had a look at the raybestos cast iron pos. It looks nothing like the original,is bulkier and has a bolt thru the middle of the reservouir cap for a hold down. And it's made in china!!! FTS!

Im not buying that ...."thing". I can just bet installation will be a nightmare.

If it comes to it,I will just rebuild the original cast. As mentioned at least I will know what I've got.

I'd like a ready to go alum master for the weight savings,but I dont want a complication either.

Anyone using just a power master cyl without the vacuum booster in my particular app? How is the braking power vs the pedal effort? Which particular master are you using?