Those are called "jack screws" (specific to Romeo engines as opposed to "dowel pins" used with Windsors) and I'd suggest borrowing or buying yourself a detailed "FORD" shop manual (not Chilton or Haynes) that lists their torque and load specs along with all of the others. I used to remember them, but it's been a couple of years since I built my engine.
As darkside03gt stated, you're also going to need all new fasteners (main bolds, head bolts, etc) to put the engine together. The modular engines use torque to yield hardware which are throw away after they've been torqued down once. To be honest, I've seen people reuse TTY stuff before, but if you plan on generating a lot of power, I wouldn't chance it. Your rotating assembly will most likely come with beefed up rod bolts already. Most of your gaskets are reusable as well (pan gasket, timing cover, valve cover) so that'll save you a little in the cost. Just make sure they're cleaned up well and in good shape and to use a few dabs of RVT silicone where they intersect with one and other (timing cover at the top of the block).
Like I said, a detailed shop manual will really help you understand all of the specs you (or your builder) are going to need in assembling it. Not a lot of "old school" machine shops have tackled a modular rebuild, so it can be intimidating, but anyone worth thier salt in the industry should be able to accomplish it. I built mine along with my dad in the middle of the garage floor and his machinist skills originate back in the late 60's.
