Hi and congrats on your acquisition!
There are many different sources of noise that combine and result in the sound you hear. It's probably a good idea to replace all the felts you mentioned.
Another thing you could do is install a backcheck kit from VV. I actually bought one of these kits a few years ago for my MkV, but after realizing that the parts should be modified to fit on the MkV keyboard, I forgot about the project and I'm now thinking of installing it on my MkI. Not everybody agrees that it's a good idea, but in my opinion it does help to reduce the number and intensity of hammer (and key) bounces when the key is released.
If you want to take it even further, I'd say you could have the key bushings replaced (front and center), but this job should be done with the proper tools, felt and cauls for gluing the felt. It's not terribly difficult, but if you don't want to get too involved with this kind of repair, you might want to have it done by a piano technician. I've done this repair on acoustic pianos, but to be honest I still haven't done it to my Rhodes, however I'm pretty sure it would help to quiet the action and make it feel more firm.
good luck!
By the way I'm with you on ordering only once from VV, I'm also in Canada and everytime I order, the total cost with exchange rate, shipping, brokerage fees, etc. is just crazy. I just ordered a refurb kit and asked that they use USPS instead of UPS, don't know if it will happen...
