Odd one out in pair project

I shall note up front, I am myself a student looking for insight from any lecturers or professors who have had a class with this situation and what I might expect in my case.

I am on a "Computer Engineering" integrated masters degree (a multidisciplinary degree with elements of several fields including Computer Science and Electrical Engineering) for which much of the assessment is done via assessed projects and coursework. Most of these projects are undertaken in groups of two where students are expected to share out work and each create a logbook also which documents their progress and individual contributions.

In a particular unit my class has an odd number of students, which after being split into pairs (using a random process) left me as the "odd one out". I discussed this briefly with the unit lecturer who felt that it would be inappropriate to create a group of three as there would then not be sufficient work for each student to demonstrate mastery over the subject.

I agreed that I would attempt the project on my own (admittedly there were not any other obvious options). Fortunately I have significant prior experience in the subject area and have therefore been able to keep up with the workload despite working alone. However I cannot help but feel that I would be able to accomplish a more polished and complete piece of work if I were not working alone.

I am therefore concerned that my work may not reflect what I would otherwise have been able to accomplish in terms of feature richness and polish and fear that this could negatively affect my grade in the unit. Note that I have completed all the basic requirements of the project fully but feel that the lightened workload from having a partner would have allowed me to explore and research in greater depth as well as complete a range of interesting optional features which would have been credit-worthy.

Firstly, what should I expect in terms or grading? Should I expect that they will grade my work exactly as they would that of a normal team of two, or are they likely to take into account the situation?

Secondly, should I try and talk to my lecturer and see if there is some way I can express my mastery of the more advanced areas without having the time to implement them in the project or is this likely to come across merely as begging for lenient marking? If I were to have such a talk is there anything specific I could say to clearly express my concerns as I have stated here?

My institution does not appear to have any specific policy regarding uneven group sizes such as this case and as it has not happened before (as least in my classes) so the lecturer has not made any statements of how they will treat this situation.

TL;DR:

I am the last odd numbered student in a class for a pair project and am therefore working alone. What can I expect regarding grading and are there any actions I can take to express my mastery of the topic area to my lecturer without enough time to implement all the features in my project to prove this?