91 crewcab...got a couple questions

[Ta2edjr]

So I'm going to look at a 91 crew cab 2wd dually tomorrow...few things I'm wondering....the truck has a tbi 350 with 700r4 does this sound correct for a one ton truck...I figured it would have a th400 or 4 spd and more than likely a bbc under the hood. But those arnt my main concern..can anyone tell me what size brake lines this truck would have on it? Has a small leak and plan on fixing it. The truck isn't that far from me but I don't have any one with a truck big enough to haul a 1 ton crew cab long bed lol. Hopefully I can get a couple compression fittings a piece of line and bring this thing home tomorrow.