I'd also include Jock Livingston :
https://www.espncricinfo.com/australia/content/player/6304.html
15,000 first class runs at 45, including averaging 50 in the "tests" the Commonwealth xi played against India, while playing as keeper.
i have a team of players, many not mentioned earlier in the thread, including jock livingstone, 6 including livingstone played mostly county cricket, however, none would have been out of place in the test team of their day.
dene hills, tas, 7894@40.07, 21 cent.
frank tarrant, vic & middx, 17952@36.41, 33 cent, 1512 wkts@17.49
jock livingstone, n.s.w. & northants, 15269@45.04, 34 cent.
f.c.( cecil) thompson, qld, 4132@42.16, 11 cent.
james brayshaw, w.a.& s.a., 4934@42.53, 10 cent.
ken grieves, n.s.w. & lanc, 22454@33.66, 29 cent., 610 catches + 4 stumpings
vic jackson, n.s.w. & leic, 15698@28.43, 21 cent, 965 wkts@24.73
j.a. ( john) cuffe, n.s.w. & worc, 7476@22.25, 4 cent, 738 wkts@25.47
chris hartley, (w.k), qld, 6138@34.48, 10 cent, 547 catches, 17 stumpings
jack manning, s.a. & northants, 513 wkts@22.73
wayne holdsworth, n.s.w., 212 wkts@32.75
a few lesser names, however a pretty decent team, the forgotten hills, underated brayshaw, and in grieves, one of the finest catches in the history of the game, 6 in one innings against sussex, 8 in the match.
they would hold their own pretty well.