The old one will just join the Walbro shelf of the micro carbys box, I tend to keep a fair stock of spares as I have so many machines passing in and out.
Ill have to get some pictures up of the current set-up, it's a little funny looking as I had to use the throttle control off a mower, due to the restrictions of the space.
The only area I could put the cable through required the cable to extend to increase throttle, while trigger type setups usually retract to bring the rev's up!
The blower has a universal 4-stroke mower throttle control, and a cable looping to the back!