This looks like a great line, not at least because of its simplicity. Other fan made Traveller lines here are often (too) complex.
Acolyte is simple and similar to Page and Peasant.
Treasure Hunter and Soldier would be a bit weak as 3$ Kingdom Supply cards but Deacon seems strong, potentially even better than a 4$ trasher like Remake. On the other hand you only get to play it after the second shuffle instead of after the first. if it is too string "Trash up to 2 cards" is a straightforward nerf.
Priest is a bit weaker than comparable gainers. I don't wanna argue against the conditionall VP token gaining but it seems like a niche option.
Cardinal looks like an obvious Library variant but it'll probably play a bit differently. Library does after all make little sense as an "ordinary" drawer, when it is just a Smithy, so you gotta combine it with discarding or non-drawing cards whereas Cardinal could actually be viable without that as "+4 Cards, discard a card". You probably don't want more than 1 or 2 in your deck though but this is hard enough to achieve with Travellers anyway.
I like Pope. Seems again like a simple Goons variant but the non-terminality is a big one and there is some combo potential with Priest. Pope, Priest, a cost reducer and Duke could be a fun Duchy game.