NOS Rockshox SID SL 80mm - buy?

[RadNomad]

Hi all, this NOS Rockshox SID SL Pure Dual Air 80mm shock fork:
https://www.ebay.co.uk/itm/306192392828
Assuming a 24 year old NOS fork likely need new seals, are they obtainable anywhere?
Anyone got a service manual for these or a parts diagram?
Can remote lockout be retro-fitted?
To install on a '99 Hei Hei with P2s 420mm axle-to-crown - i think these frames designed for 80mm travel fork?
Aside from price, would these be a good choice technology-wise?
Thanks!
PS my first post in about 5 years on here, just about remembered my password!

 

[basketcase]

I don't know if you can get them in the UK, but I've used these on a couple RS forks :
https://cycling.endurobearings.com/...t_suspension_brand=Suspension+Brand:Rock+Shox

 

[rentedmule]

It may not need new seals - I have 3 or 4 SIDs, all bought used with no info on service history, and not a single one has needed maintenance in a decade +. They don't even seem to lose air over the winter months.

I have no complaints about performance either - they seem to work well.