building pole barns in the sky
Know you were asking about costs and if you were to DIY the building (versatube or other steel building company) the biggest cost is more likely going to be concrete. I know the online estimates I've seen are around $6-10 a sq/ft for 4" thick slabs. If you are going with a a 2 post lift you will want a thicker pad (look at what your lift recommends) while 4 post don't really care.