I got QBP's 'Locking Spacer' for that , I have an integrated headset bike, the fork falls out easily.. without it.You need a pinch collar to hold the steering tube in place then you are free to move the stem up and down as you please.
Then I Got one of Mike Ahren's 'Wise *******'s'.. another 9/8" pinch bolt spacer .. It has an Accessory function ..
.I can't get myself to cutup a good pair of handlebars
1" aluminum tubing will do fine.. [the SJS thing, the 'T' is 7/8" /22.2mm]