I purchased a ba flat tray 12 months ago and almost immediately regretted not getting the BF RTV for the extra ground clearance they have will the rtv suspension bolt straight on to the BA or is their a lift available for the BA's

I can find heaps of kits to lower the BA but not to lift them.

Yes all the RTV gear can be swapped into a normal ute, just make sure you get everything.

Or even easier, sell yours and buy an RTV.

buying the RTV is not an easy option at the moment but changing suspension is easy!.
will the brake lines need extending also?

Heres what comprises the RTV lift:

Front suspension K frame
Upper control arm mounts
Front suspension uprights/spindles
Front struts
Steering rack (or at last the rack ends)
Leaf spring hangers for the rear leafs
Rear radius arms and brackets (held down by the U bolts that secure diff to springs)
Spacer block assembly for the spring shackle mounts

Springs are pretty much standard items at the front and 1 tonne spec at the rear