No worries.
Personally never really understood the effort or why people would go tray back. It seems to leave you with an impractical vehicle, but most of the cons of a pickup or full body. Plus they generally look a bit minging and disproportioned. Hope yours turns out ok.
I do like modified vehicles (mine is very heavily modded!). 36" tyres are BIG. Hope this isn't for laning?
36" tyres are also way over the stock axles capability, they break even with 31-32" tyres. And you'll want to regear, either different transfer box or 4.10:1 diffs.
I also love looking at how the suspension works, but I'm a big believer in trying to keep a vehicle as low and stable as possible, yet maximise flex. So many 4x4's (often D2's) have terrible suspension and end up hugely compromised off road. I recall a trials event a few years back, young lad turned up with a 4" lifted D2. Although on much smaller tyres, think they 32-33". But it had no flex at all and bounced itself around the site frequently lifting wheels and getting stopped where standard leaf sprung Series motors sailed through with ease.
Spring wise, I'd look for the softest, longest spring you can. If you need more lift then maybe consider some lift packers. I'd also go for nice long shocks, but you may need to change upper shock mounts to make the most of them. I think there are also things you can do with a D2 with regards to the Watts linkage and radius arms to aid more travel. But I'm less knowledgeable on the D2 suspension. I'd have thought a limitation would be suspension compression with 36" tyres, if you say clearance is an issue. And with 4" of lift, even a +5" shock is only going to give you 1" of extra droop.
Hope I didn't come across too negatively, not my intent. I just like to try and maximise what a vehicle can do.
Completely unrelated to a D2. This was my 88 leafer.... would drive through almost anything, but looked mostly stock. It was all about the flex.
These springs are pretty good:
https://www.flatdoguk.com/FD-Springs-Land-Rover.asp
On my current vehicle I'm running RRC fronts all round in +2. They are the softest spring LR made, but they won't give you 4" lift. But do flex well. You could run some +2" spring packers with them.
The next step would be the Tomcat grey springs, but they are more money. But softer spring rates again.
https://www.tomcatwebshop.co.uk/suspension-111-c.asp
