32 Highboy

Thinking about starting to gather parts for 32 build on down the road. Don't have funds to buy all at once.Am looking at some used parts.My question is for now which axle to look out for,a 48 or a 46 wide.It may be 2 or 3 years gathering parts.But I not in hurry , just looking around. Thanks

With a hiboy you have more latitude for width because you're not having to stay within the fenders, but the minimum width you want from wheel mounting flange to flange is 56" typically.