Might be pricey but try this company www.justdashes.com. They can rebuild any dashboard/dashpad to new. FJs might be less costly due to there simplicity.
I too would be interested in 3/4 tub for my 74 FJ40. I have been more of a lurker here on MUD and do not have many posts. I live in SC and split my time between Hartsville and Charleston. Been into 40s and 60s since the mid 80's and have started another project. Anyway, very interested in new...
You could try www.pacolonline.com. Just give him a call and explain your situation. He does not show the "A" pillar on his site but does have the "B" pillar so who knows. I only mention him since live pretty close to his business.