1969 109 Interchangeability

[4bt109]

Have the option to buy a bunch of parts for a project. 90's 110 rolling chassis, lhd defender bulkhead and front body bits, 1969 5 door body tub.

Question is can I use all this together along with defender doors?

I plan a 4 door 110 pickup. Will a defender tailgate fit the 69 tub? The parts are: 110 chassis, 69 5 door tub, defender bulkhead, series wind screen, defender doors, defender wings, defender bonnet, defender grill. No top. Although I can also get a 69 safari wagon top if I want it, any value in one?

I want to use the Defender front end as I plan to use a Cummins 4bt/NV4500/LoMax NP205 that I have laying in the shop and expect to need the extra room. I also have a Scout II PS Box, D44 and a D60 that I can use.

I know Defender doors fit the SIII, but what about a 69 SII?

Any things to look out for? Thanks for helping a Rover Noob out.