Specific Tacoma to T4R Fox suspension questions

TL;DR:

1. What size rear shock, lower bushing do I need for a 5th gen T4R?
2. If my rear shock has a longer compressed length than a T4R shock, do I just need a spacer on my bump stop to move it down and prevent bottoming the shock out?

I have a full set of Fox 2.5 Remote Reservoir + DSC coilovers and shocks from my 2014 Tacoma. Before I hand it over to the dealership in trade for a 2020 T4R ORP...I'm taking the suspension off and would like to swap it onto the 4Runner. The coilovers and shocks are all 0-3" lift, extended travel...and the rear shocks are actually Tundra shocks. I'm fairly mechanically inclined...I managed to install the entire suspension setup on my Taco solo in a day, but I'm new to the separate coil/shock setup of the T4R rear suspension.

Front - I'm 99% sure this is plug and play. Since they are extended travel and can provide up to 3" of lift, I'm also taking my Total Chaos UCAs

Rear - I'm 90% sure that the rear shock, lower bushing is 3/4" ID (inner diameter)...is that correct? Also, looking at the design of the lower mount (on the axle), it doesn't look like I need a metal sleeve in the bushing...that there's a sort of "sleeve" attached to the axle as part of how the shock mounts. Is that correct?

Since the rears are for a Tundra, the compressed length is .1" longer than a shock that Fox has listed for the T4R. If I understand correctly...in an extreme case, if I bottomed out the rear, the shock could bottom out before I hit the bumpstops...there would be a .1" gap between bumpstop and plate. So can I put a small spacer in to move my bumpstop down, or just get a longer/taller bumpstop altogether to solve this problem?

Any help/guidance/advice/knowledge is appreciated. Cheers!