I don't know R valuations, but I'm pretty sure it'd take a fair amount of time to part out, & if you're considering looking at it as "parts value" & you're open to it taking time, I might gently suggest being open to selling the entire vehicle at "parts value minus storage & teardown time & effort". If I was closer I'd either have a number for you or time & tools to help pull the cover & replace seals. It's all very doable, but if you're replacing the front seals, the timing belt & cam hubs need to come off AND be put back on properly. So in addition to the tooling needed to take the cam cover off w/o it deforming/warping/cracking from the pressure of the valve springs possibly being uneven, you DEFINITELY want to lock the cams in position with the other tool. As the cover lifts the cams will be forced up but if you mark EVERYTHING & use the cam lock tool on reassembly, you can get everything on the correct timing. If you already know all this, aces, thanks for reading it anyway. But if it's new to you, I think my count was over 80 bolts need undone & redone, you'll want the pushers/drifts for the seals to seat them properly (not too deep/shallow or crooked), ya gotta mark the daylights out of the VVT if you have it, pick up some shallow torx bits that can take roughly 120ft/lbs of torque if you're leaving the engine in the car, spark plug tube seals, & other incidentals will pop up like the PCV system prolly being clogged that buggered the cam seals to begin with 🙁. It's not impossible if you've done it before, but anyone who's buying is going to be adding roughly 1k to the price given I was quoted $880ish for our local dealer to do cam seals alone on a T5. (That was why I got to learn how to do everything mentioned here 🙃)
Here's where you're at once you get the cover off, but with a not so great explanation of how things work because the person the video was recorded for wasn't "car literate" & I struggle to explain things simply.