If you are only ever using it over a local network, layout weight is not really much of a concern. Most local networks have transfer speeds of 100 megabit or 1 gigabit over a hard-wired connection which can transfer 1.3MB in a few milliseconds
Yeah that's what I was thinking. My only concern which I failed to mention is the number of records that will end up in this database :)
Thanks for your reply
Performance issues due to the number of records will not be greatly affected by the graphics you use on the layout. You need to be careful of found set size and layout elements that search, summarize or validate large numbers of aggregate records. Filtered portals, summary fields, conditional formats are all places where you might find such an issue.