Buying my second 914... powerplant suggestions? Options

[k4lpcm]

Hi all,

I'm picking up a '72 1.7 this weekend. It's in good running condition, but needs some help cosmetically for the interior and such. I plan on this being a semi-project car and have some general questions about powerplant. I'm contemplating any one of the following options:

-a Jake Raby built Type IV (not sure which one yet, probably the 2316cc)
-1970-1980's era 911 engine (again, not sure exactly which one, would love a second generation 930 engine though)
-Modern 3.6L 911 or smaller boxter powerplant

I'm sure the simple choice is the Raby engine, no? I would think the older 911 wouldn't be bad either, in terms of getting it to fit and making it run for the least heartache. I've almost ruled out the modern 3.6 option as I'm sure it's a royal pain to get that thing in a 914. I'd love for someone to prove me wrong about that, though.

So I'm just looking for some input... big 4, regular 6 (or 930), or newer big 6? I'm not looking for earth shattering performance... but I'd like to at least keep up with some of the quicker asian jobs in a straight line.

Am I correct in assuming I'd be okay with the standard gearing and transaxle if I stick with a built Type IV?

Thanks guys!
-Eric