Eh...... It's a BIG job. I've done over 25 of them. Works very well when done.
1) There are holes to be drilled. Measure twice - drill once.
2) Be very careful to ck for suction and return hose interference upon completion.
3) Take your time. Read instructions first.
Easy to screw thing up. Hope they gave you the kit n/c
There was a service bulletin.
After a few, it took about 5 hrs. Toro pays f/r for 4 hrs
It was almost physically impossible to do it in that amount of time.
If done correctly, you'll be happy with the results.
The quality of your dealer is suspect if they never heard of it.
They don't keep up on things. That makes them hacks