I'm interested to see the changes you've made. Was fitting the disc brakes easy and/or worthwhile?
I'm guessing the only options are a riser stem and riser bars?
Fitting the disc was easy and was, IMO, worthwhile (especially as I had a spare set-up laying about).
I've nearly always used risers as I find it a more comfortable riding position and you get better control. Again it's my opinion as there are 'anti-riser' peeps out there.
Just try either a riser stem or bar first as doing both together may be too much. Or try a shorter stem and riser.