The 235 is a decent engine. Better than the older 216, but not the same has the "modern" inlines from the 230-292 lineup. Try someplace like
http://stoveboltengineco.com/catalog/ They have an "mini" HEI distributor for $185 and a Weber progressive two barrel for about the same price. I sold my old unrebuilt rochester carb on ebay last month. This could help offset the cost. They also have a neat brushed aluminum air cleaner for $30. I would get rid of the oilbath aircleaner unless you are going for a period correct look. It has value to somebody if you want to sell it.