Getting the Dauntless running again

Ok, looks like I'll finally have plenty of free time this weekend, and agreeable weather, to try to get this moneypit's engine running again. It hasn't been run in two years apparently. It does turn over. Before starting it, I will be draining what might be left of any antifreeze and engine oil, and refilling, with new oil filter, fuel filter, air filter and spark plugs (condition of old plugs pending). However, I am contemplating running it through once with cheap new oil and filter, and sea foam in the crankcase and fuel tank, and then changing again with new oil and filter, and then changing the spark plugs. Trying to burn as little money as possible except where it counts without having to needlessly replace parts. I also plan on removing the rocker arm covers and checking the condition of everything I can see from there, doing any adjustments I have the equipment to perform, and replacing the covers' gaskets, and inspecting the distributor under the cap (partly to see if any upgrades have already been done I wasn't aware of yet). I'll make sure the power steering fluid is topped off, but the transmission and transfer case are currently not installed so nothing to check there.

Running it without the transmission shouldn't be an issue I don't think, but is there anything I should make sure is out of the way, etc when doing something like that? Also, for an engine that hasn't been run in this long, are there any other suggestions? Like I said, the main goal is to simply get the engine running without causing any damage to it, so I'm not currently looking for any pointers beyond that, I'll get to the transmission, transfer, axles, etc later.

BTW, if you have any legitimate arguments against Seafoam, I'd be interested to hear them, but please refrain a simple 'Seafoam sucks' reply, I've seen those and without any evidence it's not going to deter me from using it after the number of positive articles I've read about it.