Will '67 steering wheel mount on '68 column?

'67 had 2 types of steering columns from the factory .... the '66 and earlier style and the '68 and later style. Same wheel worked on both.

The original '68 wheel is nothing to look at so good choice there.

You may find the '67 steering wheel a slightly smaller diameter than the column, roughly 3/8ths to 1/2 inch in total diameter, so the gap's half of that. It'll fit on the column though. IIRC the additional diameter is due to the design of the collapsible column.