99 Venture Timing chain replacement

I have my venture ripped apart for a antifreeze leak. Turns out to be the combonation timing gear/water pump cover on the passenger side on
the van. Anyway, bought all the gaskets, parts etc. I am just wondering if there is a half of an oil pan gasket they make for this job. I am not dropping the whole oil pan, but the timing chain cover meets up with the oil pan. Do I need to buy a whole oil pan gasket and trim it, or do I just put some rtv on it? The gasket is in tact, so let me know what you guys think.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.