Realise that 30 over is taking 15 off the cylinder walls and yes you can hone that much off but you can very easily taper the cylinder, put the wrong finish on the cylinder walls and wind up with to much clearance
You have to know the wear on your cylinders as it is now
The problem with bringing it to a machine shop and telling them not to hone it, is like asking them to do an incomplete job and honestly if you brought the block into be bored. it wouldn't make sense not to have it honed for each piston you have.
Why not do as im doing now, a trusted shop is doing all the machine work on my 4cyl Willys engine, im assembling it