Nice ride!
And about the TPMS... Chris is right, keep looking for a shop willing to do them... I just had this done... it is a PITA which is why no one wants to touch them.
The shop who did it for me didn't have the replacement kit, so I went to Autozone and bought a $10 set of hex keys and let them use them.
The easiest way to do them is to completely remove the tire off the rim (1 person can do this), but depending on the shop they might charge you for dismount AND remount on EACH tire....
Some shops like where I had mine done charge $5 to mount or dismount though so it's not to bad... I considered buying a portable tire changer fom Harbor Freight to do this on my own but it wasnt worth ALL the work I was gonna do... the shop had to dissmount 8 tires and mount 4... but only charged me $5 x 8 (4 dismounts and 4 mounts) plus another 20 to balance all 4 so $60 all together.
Good luck.