All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
There's nothing wrong with that. I've considered the same thing for the same parts. I built my engine by hand, slowly and meticulously. I let someone else build my transmission, but I stood there and watched the whole time. Learned a little too, that little has gone a long way.
That is a good looking truck. I am glad you are getting it sorted out. It should last you quite awhile.