TD5 Fuel Tank into early 110

Noticed last night my early 110 needs a new fuel tank, thoughts are

1) Like for like (but not a leaky one)
2) Stainless replacement - fitted one to a 90 15 years ago, and there were several suppliers around then, but cant seem to find one now
3) Fit a TD5 plastic tank

Anyone fitted a TD5 plastic tank into a 110 - would prefer a bolt and bracket solution if poss

Any help or advice appreciated

td 5 has internal pump so this must be overcome by making a diferent tower or removing pump and getting some td5 fuel lines or machining fuel line adapters work out fuel gauge sender calibration.
remove tub supports on chassis rail to clear thicker wider filler spout
fit td5 rear crossmember or butcher original to take tank support
fabricate front mount for tank support